Final answer:
In 2016, Alan Construction Corp would report a gross profit of $100,000.
Step-by-step explanation:
In 2016, Alan Construction Corp would report a gross profit of $100,000 (rounded to the nearest thousand). To calculate the gross profit, we need to subtract the cost incurred from the estimated cost to complete in 2016. The cost incurred in 2016 is $900,000, and the estimated cost to complete in 2016 is $600,000. Subtracting the cost incurred from the estimated cost to complete gives us $900,000 - $600,000 = $300,000. Rounding this to the nearest thousand gives us a gross profit of $100,000.