Finding the Fourth Proportional to 939,501.21, 1,296,847.89 and 557,527.98

Step by Step Solution

1. Step 1: Write the proportion equation
   939,501.21 : 1,296,847.89 = 557,527.98 : x
2. Step 2: Convert to fraction form
   939,501.21/1,296,847.89 = 557,527.98/x
3. Step 3: Cross multiply
   939,501.21x = 1,296,847.89 × 557,527.98
4. Step 4: Simplify right side
   939,501.21x = 723,028,984,478.96
5. Step 5: Solve for x
   x = 723,028,984,478.96/939,501.21
6. Step 6: Final answer
   x = 769,588.14