Finding the Fourth Proportional to 1,428,542.42, 2,142,789.98 and 575,593.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,542.42 : 2,142,789.98 = 575,593.25 : x
2. Step 2: Convert to fraction form
   1,428,542.42/2,142,789.98 = 575,593.25/x
3. Step 3: Cross multiply
   1,428,542.42x = 2,142,789.98 × 575,593.25
4. Step 4: Simplify right side
   1,428,542.42x = 1,233,375,435,063.72
5. Step 5: Solve for x
   x = 1,233,375,435,063.72/1,428,542.42
6. Step 6: Final answer
   x = 863,380.34