Finding the Fourth Proportional to 1,142,581.43, 1,576,739.82 and 626,336.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,142,581.43 : 1,576,739.82 = 626,336.43 : x
2. Step 2: Convert to fraction form
   1,142,581.43/1,576,739.82 = 626,336.43/x
3. Step 3: Cross multiply
   1,142,581.43x = 1,576,739.82 × 626,336.43
4. Step 4: Simplify right side
   1,142,581.43x = 987,569,595,405.33
5. Step 5: Solve for x
   x = 987,569,595,405.33/1,142,581.43
6. Step 6: Final answer
   x = 864,331.92