Need some help writing a formula

Column A Column B Column C Column D Result
Return
500 652 450 710
710
850 200 50 354
850
620 892 100 400
892

My goal is to write a formula that will return the larges volume within
Column A thr D. As you can see the largest volume can be in any column/row
intersection.

Regards,
GFS


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GS