A reporter carried an aneroid barometer from the ground floor to his office atop a building. On ground floor, the barometer read 30.15 in. Hg absolute while on the top of the building, it read...

A reporter carried an aneroid barometer from the ground floor to his office atop a building. On ground floor, the barometer read 30.15 in. Hg absolute while on the top of the building, it read 28.607 in. Hg absolute. Assume that the average atmospheric air density was 0.075 lb/ft³ and estimate the height (in feet) of the building.