Finding the Fourth Proportional to 945,951.50, 1,305,440.61 and 516,259.10

Step by Step Solution

1. Step 1: Write the proportion equation
   945,951.50 : 1,305,440.61 = 516,259.10 : x
2. Step 2: Convert to fraction form
   945,951.50/1,305,440.61 = 516,259.10/x
3. Step 3: Cross multiply
   945,951.50x = 1,305,440.61 × 516,259.10
4. Step 4: Simplify right side
   945,951.50x = 673,945,594,422.05
5. Step 5: Solve for x
   x = 673,945,594,422.05/945,951.50
6. Step 6: Final answer
   x = 712,452.59