Finding the Fourth Proportional to 771,404.69, 1,152,415.98 and 499,316.38

Step by Step Solution

1. Step 1: Write the proportion equation
   771,404.69 : 1,152,415.98 = 499,316.38 : x
2. Step 2: Convert to fraction form
   771,404.69/1,152,415.98 = 499,316.38/x
3. Step 3: Cross multiply
   771,404.69x = 1,152,415.98 × 499,316.38
4. Step 4: Simplify right side
   771,404.69x = 575,420,167,129.09
5. Step 5: Solve for x
   x = 575,420,167,129.09/771,404.69
6. Step 6: Final answer
   x = 745,938.12