| ( | ( | 4000 | − | 1000 | ) | ÷ | 113 100 | − | Y | ÷ | 53 50 | − | 4141 100 | ) | ÷ | 25 100 | ÷ | 4000 | = | 1 100 |
| 方程左边 = | ( | ( | 4000 | − | 1000 | ) | ÷ | 113 100 | − | Y | ÷ | 53 50 | − | 4141 100 | ) | × | 1 1000 |
| ( | ( | 4000 | − | 1000 | ) | ÷ | 113 100 | − | Y | ÷ | 53 50 | − | 4141 100 | ) | × | 1 1000 | = | 1 100 |
| 方程左边 = | ( | 4000 | − | 1000 | ) | ÷ | 113 100 | × | 1 1000 | − | Y | ÷ | 53 50 | × | 1 1000 | − | 4141 100 | × | 1 1000 |
| = | ( | 4000 | − | 1000 | ) | × | 1 1130 | − | Y | × | 1 1060 | − | 4141 100000 |
| = | 4000 | × | 1 1130 | − | 1000 | × | 1 1130 | − | 1 1060 | Y | − | 4141 100000 |
| = | 400 113 | − | 100 113 | − | 1 1060 | Y | − | 4141 100000 |
| = | 29532067 11300000 | − | 1 1060 | Y |
29532067 11300000 | − | 1 1060 | Y | = | 1 100 |
| - | 1 1060 | Y | = | 1 100 | − | 29532067 11300000 |
| - | 1 1060 | Y | = | - | 29419067 11300000 |
29419067 11300000 | = | 1 1060 | Y |
1 1060 | Y | = | 29419067 11300000 |
| Y | = | 29419067 11300000 | ÷ | 1 1060 |
| = | 29419067 11300000 | × | 1060 |
| = | 29419067 565000 | × | 53 |
| Y | = | 1559210551 565000 |
| Y | = | 2759.664692 |