| X | = | 437992 | + | 147 10 | + | 600 | + | X | × | 5 100 | + | X | × | 1 1000 | + | 138 | + | X | × | 30 100 |
| 方程右边 = | 4387447 10 | + | 351 1000 | X |
| X | = | 4387447 10 | + | 351 1000 | X |
| X | − | 351 1000 | X | = | 4387447 10 |
649 1000 | X | = | 4387447 10 |
| X | = | 4387447 10 | ÷ | 649 1000 |
| = | 4387447 10 | × | 1000 649 |
| = | 4387447 | × | 100 649 |
| X | = | 438744700 649 |
| X | = | 676031.895223 |