Finding the Fourth Proportional to 713,061.59, 984,032.73 and 390,764.75

Step by Step Solution

1. Step 1: Write the proportion equation
   713,061.59 : 984,032.73 = 390,764.75 : x
2. Step 2: Convert to fraction form
   713,061.59/984,032.73 = 390,764.75/x
3. Step 3: Cross multiply
   713,061.59x = 984,032.73 × 390,764.75
4. Step 4: Simplify right side
   713,061.59x = 384,525,303,730.27
5. Step 5: Solve for x
   x = 384,525,303,730.27/713,061.59
6. Step 6: Final answer
   x = 539,259.59