Needs to extract the last incident from a group

Building a t-sql query, and I'm stuck at a problem, I have an Item_Number that has a Item_Manufacturing_Date, that ties into Item_Sales_Date, that ties into Item_Warehousing_Date that ties into Warehouse_Locations, I'm need to find out what is the last location an item was moved into in the warehouse. I've built most of the query, but I'm getting duplicates when I run it, I get all the locations an item was stored at, and I only want the very last location, my believe is my joint(s) is not defined properly somewhere along the way, I'm pressed for time and would really appreciate a swift reply,

SORRY, I can't share any piece of the data I'm working on so that you can help me, I appreciate your understanding and looking forward to hearing from you.

Many thanks
R.