A property is sold for $5,100,000 with selling costs of 3% of the sales price. The mortgage balance at the time of sale is $3,600,000. The property was purchased 5 years ago for $4,820,000. Annual depreciation allowances of $153,016 have been taken. The tax rate is 28%. What is the adjusted cost basis? (Do not show any decimals or cents in your answer)