Finding the Fourth Proportional to 1,087,113.12, 1,499,974.56 and 657,384.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087,113.12 : 1,499,974.56 = 657,384.24 : x
2. Step 2: Convert to fraction form
   1,087,113.12/1,499,974.56 = 657,384.24/x
3. Step 3: Cross multiply
   1,087,113.12x = 1,499,974.56 × 657,384.24
4. Step 4: Simplify right side
   1,087,113.12x = 986,059,636,144.94
5. Step 5: Solve for x
   x = 986,059,636,144.94/1,087,113.12
6. Step 6: Final answer
   x = 907,044.19