Finding the Fourth Proportional to 1,137,494.72, 1,569,663.69 and 628,157

Step by Step Solution

1. Step 1: Write the proportion equation
   1,137,494.72 : 1,569,663.69 = 628,157 : x
2. Step 2: Convert to fraction form
   1,137,494.72/1,569,663.69 = 628,157/x
3. Step 3: Cross multiply
   1,137,494.72x = 1,569,663.69 × 628,157
4. Step 4: Simplify right side
   1,137,494.72x = 985,995,234,519.33
5. Step 5: Solve for x
   x = 985,995,234,519.33/1,137,494.72
6. Step 6: Final answer
   x = 866,813.02