why my step is wrong?? please tell me and write the correct step

the correct ans is : 8.92 don't use excel

2.1.13S Chuck needs to purchase an item in 10 years. The item costs 200 today, but its price inflates 4% per year. To finance the purchase, Chuck deposits 20 into an account at the beginning of each year for 6 years. He deposits an additional X at the be- ginning of years 4, 5, and 6 to meet his goal. The effective an- nual interest rate is 10%. Calculate X. 10 10 10 2113) 3 6 lo = 296,048 057 inflasi 200 (1 + 4%) 10 20 S 310, 1 (1+0,17 + (20+x) S 370, 1 (HOL)" = 296,048897 20 20 (100) 9.-..) C1171 (2012) ( (2003-2) (119 119 009072 +. (2012) (5, 3907003)296,048097 20 ta=34, 469 23045 = 141469 Bous L