Finding the Fourth Proportional to 961,300.71, 1,442,817.77 and 512,395.47

Step by Step Solution

1. Step 1: Write the proportion equation
   961,300.71 : 1,442,817.77 = 512,395.47 : x
2. Step 2: Convert to fraction form
   961,300.71/1,442,817.77 = 512,395.47/x
3. Step 3: Cross multiply
   961,300.71x = 1,442,817.77 × 512,395.47
4. Step 4: Simplify right side
   961,300.71x = 739,293,286,821.52
5. Step 5: Solve for x
   x = 739,293,286,821.52/961,300.71
6. Step 6: Final answer
   x = 769,055.18