Every week Bob checks on his chickens and adds more grain to a hopper feeding them.
The first week it is empty and he adds 279 lbs.
The next week he finds 276 lbs grain remaining. He adds 24 lbs to the hopper.

The next week he finds 291 lbs of grain remaining. He adds 24 lbs to the hopper.

The next week he finds 329 lbs of grain remaining. He adds 219 lbs to the hopper.

The next week he finds 467 lbs of grain remaining. He adds 729 lbs to the hopper. How much grain will he find remaining next week?