Finding the Fourth Proportional to 714,789.72, 1,069,504.69 and 425,543.38

Step by Step Solution

1. Step 1: Write the proportion equation
   714,789.72 : 1,069,504.69 = 425,543.38 : x
2. Step 2: Convert to fraction form
   714,789.72/1,069,504.69 = 425,543.38/x
3. Step 3: Cross multiply
   714,789.72x = 1,069,504.69 × 425,543.38
4. Step 4: Simplify right side
   714,789.72x = 455,120,640,708.45
5. Step 5: Solve for x
   x = 455,120,640,708.45/714,789.72
6. Step 6: Final answer
   x = 636,719.62