| X | × | 3639 5000 | + | X | × | 21 100 | × | 1479 10000 | = | 131769 100 |
| 方程左边 = | X | × | 3639 5000 | + | X | × | 31059 1000000 |
| = | 758859 1000000 | X |
758859 1000000 | X | = | 131769 100 |
| X | = | 131769 100 | ÷ | 758859 1000000 |
| = | 131769 100 | × | 1000000 758859 |
| = | 43923 | × | 10000 252953 |
| X | = | 439230000 252953 |
| X | = | 1736.409531 |