A property is sold for $4,900,000 with selling costs of 7% of the sales price. The mortgage balance at the time of sale is $3,320,000. The property was purchased 5 years ago for $4,262,408. Annual depreciation allowances of $131,910 have been taken in each of the past five years. The tax rate is 28%. What is the adjusted cost basis? (Do not show any decimals or cents in your answer)