1170.8 yuan. According to the relevant information of Hualu.com, a loan of 100,000 is divided into 120 installments, one installment is one month, and 120 installments are 10 years. If it is repaid in 10 years, 100,000 * 4.05% = 4,050 yuan, and ten years is 40,500 yuan plus the principal of 100,000 yuan. =140,500 yuan divided by 120 months, the monthly payment is 1,170.8 yuan.