Coronado Corporation acquires a coal mine at a cost of $448,000. Intangible development costs total $112,000. After extraction has occurred, Coronado must restore the property (estimated fair value of the obligation is $89,600), after which it can be sold for $179,200. Coronado estimates that 4,480 tons of coal can be extracted. If 784 tons are extracted the first year, prepare the journal entry to record depletion.