Hi,
I'm trying to emulate the screen cap below into some JS.

In the SDK for Project there is no parameter specified for the Input Spatial Reference like there in the above screen cap of the Geometry Service I am using, so I'm not quite sure how I specify that in my JS. Here is what I have so far:
view<SPAN class="punctuation token">.</SPAN><SPAN class="token function">on</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"click"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">function</SPAN> <SPAN class="punctuation token">(</SPAN>event<SPAN class="punctuation token">)</SPAN> <SPAN class="punctuation token">{</SPAN>
event<SPAN class="punctuation token">.</SPAN><SPAN class="token function">stopPropagation</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN> <SPAN class="comment token">// overwrite default click-for-popup behavior</SPAN>
<SPAN class="comment token">// Get the coordinates of the click on the view</SPAN>
<SPAN class="keyword token">var</SPAN> northing <SPAN class="operator token">=</SPAN> event<SPAN class="punctuation token">.</SPAN>mapPoint<SPAN class="punctuation token">.</SPAN>y<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> easting <SPAN class="operator token">=</SPAN> event<SPAN class="punctuation token">.</SPAN>mapPoint<SPAN class="punctuation token">.</SPAN>x<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> geomSer <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">GeometryService</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token"><SPAN>"</SPAN><A class="jive-link-external-small" href="https://community.esri.com/external-link.jspa?url=http%3A%2F%2Fsampleserver6.arcgisonline.com%2Farcgis%2Frest%2Fservices%2FUtilities%2FGeometry%2FGeometryServer" target="_blank">http://sampleserver6.arcgisonline.com/arcgis/rest/services/Utilities/Geometry/GeometryServer</A><SPAN>"</SPAN></SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> params <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">ProjectParameters</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
params<SPAN class="punctuation token">.</SPAN>geometries <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">[</SPAN>event<SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">;</SPAN>
params<SPAN class="punctuation token">.</SPAN>outSpatialReference <SPAN class="operator token">=</SPAN> <SPAN class="number token">4326</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> newPoint <SPAN class="operator token">=</SPAN> geomSer<SPAN class="punctuation token">.</SPAN><SPAN class="token function">project</SPAN><SPAN class="punctuation token">(</SPAN>params<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
view<SPAN class="punctuation token">.</SPAN>popup<SPAN class="punctuation token">.</SPAN><SPAN class="token function">open</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">{</SPAN>
<SPAN class="comment token">// Set the popup's title to the coordinates of the location</SPAN>
title<SPAN class="punctuation token">:</SPAN> <SPAN class="string token">"Latitiude: "</SPAN> <SPAN class="operator token">+</SPAN> newPoint<SPAN class="punctuation token">.</SPAN>y <SPAN class="operator token">+</SPAN> <SPAN class="string token">", Longitude: "</SPAN> <SPAN class="operator token">+</SPAN> newPoint<SPAN class="punctuation token">.</SPAN>x<SPAN class="punctuation token">,</SPAN>
content<SPAN class="punctuation token">:</SPAN> <SPAN class="string token">"Northing: "</SPAN> <SPAN class="operator token">+</SPAN> northing <SPAN class="operator token">+</SPAN> <SPAN class="string token">", Easting: "</SPAN> <SPAN class="operator token">+</SPAN> easting<SPAN class="punctuation token">,</SPAN>
location<SPAN class="punctuation token">:</SPAN> event<SPAN class="punctuation token">.</SPAN>mapPoint <SPAN class="comment token">// Set the location of the popup to the clicked location</SPAN>
<SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="line-numbers-rows"><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN></SPAN>Any guidance is appreciated.