So, I was clearing some junk off my desk and found this written on the back of an envelope from at least... 5 months back. The point was to see how high the Pfeifferhorn would have to be in order to be visible from Wasatch Blvd. and 1700 East in Sandy Utah. I'm pretty sure Y=Elevation in order for it to be level with the mountains in front of it, Z=Elevation for it to be a dime at arms reach above the mountains, and L=Elevation for it to appear as tall as Lone Peak.
I used Google earth to get straight line distances and topo maps to figure out the elevation of the piece of mountain that it would rise above.