How can I add a spatial reference to the layer?

[KevinStimson]

I have a layer in my contents tab that does not have any spatial reference. How can I add a spatial reference to the layer?

thanks

[KevinStimson]

Thanks Chris,

I'm very new to ARCGIS and am using ARCGIS PRO, can you tell me how to get the "spatial reference properties"

[DanPatterson_Retired]

[KevinStimson]

Okay, I finally got it.  Thanks for the help everyone!