Explain the steps on how to solve the problem below:
During 2009, Argo Company sold 10 acres of prime commercial zoned land to a builder for $5,000,000. The builder gave Argo a $1,000,000 down payment and will pay the remaining balance of $4,000,000 to Argo in 2010. Argo purchased the land in 2002 for $2,000,000. Using the installment method, how much profit will Argo report for 2009?