Olympic Sports Wear estimates its Annual Federal Income tax as $10,000. It has paid the tax in four installments of $2,500 each. However, at the end of the year, the actual tax amount is $11,200.

Question

Olympic Sports Wear estimates its Annual Federal Income tax as $10,000. It has paid the tax in four installments of $2,500 each. However, at the end of the year, the actual tax amount is $11,200.
Therefore, the company needs to pay $1,200 to the government.

Instruction: Prepare the adjusting journal entry

Please help i am in trouble. 
Thank You