A company wants to import a set of equipment from abroad. Due to lack of funds, it borrows 300,000 yuan from the bank. The loan period is 2 years and the annual interest rate is 5.85%. Because the company fails to repay the loan on time, it has to pay 20% of the interest How much will the company pay back to the bank in total?
某公司要从国外引进一套设备，因缺乏资金，故向银行贷款30万元，借期为2年，年利率为5.85%，因该公司未能按时还款，还要交利息的20%的滞纳金，该公司一共要还给银行多少钱？
<result>4.22</result>