Finding the Fourth Proportional to 787,290.77, 1,086,495.86 and 443,148.93

Step by Step Solution

1. Step 1: Write the proportion equation
   787,290.77 : 1,086,495.86 = 443,148.93 : x
2. Step 2: Convert to fraction form
   787,290.77/1,086,495.86 = 443,148.93/x
3. Step 3: Cross multiply
   787,290.77x = 1,086,495.86 × 443,148.93
4. Step 4: Simplify right side
   787,290.77x = 481,479,475,592.69
5. Step 5: Solve for x
   x = 481,479,475,592.69/787,290.77
6. Step 6: Final answer
   x = 611,565.00