That would to be the way to go then. The OP was worried:
"Lisa, good thought but the "linkslopetoelevation" want a constant elevation to project up to. In my case, the 4:1 slope needs to continue project up until it meets the design profile elevation at that particular cross section."
but if you can target a profile, then start at the top of berm with this link, target the design profile at 4:1
Credit where credit is due! Give kudos or accept as solution whenever you can.