The safe load, L, of a wooden beam supported at both ends varies jointly as the width, w, the square of the depth, d, and inversely as the length, l. A wooden beam 3in. wide, 5in. deep, and 11ft long holds up 3038lb. What load would a beam 9in. wide, 6in. deep and 19ft long of the same material support? (Round off your answer to the nearest pound.)