Finding the Fourth Proportional to 710,401.59, 1,066,276.06 and 439,710.91

Step by Step Solution

1. Step 1: Write the proportion equation
   710,401.59 : 1,066,276.06 = 439,710.91 : x
2. Step 2: Convert to fraction form
   710,401.59/1,066,276.06 = 439,710.91/x
3. Step 3: Cross multiply
   710,401.59x = 1,066,276.06 × 439,710.91
4. Step 4: Simplify right side
   710,401.59x = 468,853,212,888.85
5. Step 5: Solve for x
   x = 468,853,212,888.85/710,401.59
6. Step 6: Final answer
   x = 659,983.34