Finding the Fourth Proportional to 1,123,377.30, 1,550,260.75 and 607,129.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,377.30 : 1,550,260.75 = 607,129.67 : x
2. Step 2: Convert to fraction form
   1,123,377.30/1,550,260.75 = 607,129.67/x
3. Step 3: Cross multiply
   1,123,377.30x = 1,550,260.75 × 607,129.67
4. Step 4: Simplify right side
   1,123,377.30x = 941,209,297,561.45
5. Step 5: Solve for x
   x = 941,209,297,561.45/1,123,377.30
6. Step 6: Final answer
   x = 837,838.99