Finding the Fourth Proportional to 837,061.49, 1,155,139.16 and 455,088.27

Step by Step Solution

1. Step 1: Write the proportion equation
   837,061.49 : 1,155,139.16 = 455,088.27 : x
2. Step 2: Convert to fraction form
   837,061.49/1,155,139.16 = 455,088.27/x
3. Step 3: Cross multiply
   837,061.49x = 1,155,139.16 × 455,088.27
4. Step 4: Simplify right side
   837,061.49x = 525,690,279,658.21
5. Step 5: Solve for x
   x = 525,690,279,658.21/837,061.49
6. Step 6: Final answer
   x = 628,018.72