Finding the Fourth Proportional to 855,461.52, 1,180,404.72 and 492,814.32

Step by Step Solution

1. Step 1: Write the proportion equation
   855,461.52 : 1,180,404.72 = 492,814.32 : x
2. Step 2: Convert to fraction form
   855,461.52/1,180,404.72 = 492,814.32/x
3. Step 3: Cross multiply
   855,461.52x = 1,180,404.72 × 492,814.32
4. Step 4: Simplify right side
   855,461.52x = 581,720,349,411.59
5. Step 5: Solve for x
   x = 581,720,349,411.59/855,461.52
6. Step 6: Final answer
   x = 680,007.62