Big Farm Equipment, Inc. purchased new machinery three years ago for $6 million. The machinery can be sold today for $4.5 million. The companys current balance sheet shows net fixed assets of $3.9 million, current liabilities of $1.4 million, and net working capital of $475,000. If all the current assets of the company were liquidated today, the company would receive $1.2 million cash.

What is the book value of the firm's assets?