Finding the Fourth Proportional to 1,332.63, 1,839.15 and 743.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,332.63 : 1,839.15 = 743.31 : x
2. Step 2: Convert to fraction form
   1,332.63/1,839.15 = 743.31/x
3. Step 3: Cross multiply
   1,332.63x = 1,839.15 × 743.31
4. Step 4: Simplify right side
   1,332.63x = 1,367,058.59
5. Step 5: Solve for x
   x = 1,367,058.59/1,332.63
6. Step 6: Final answer
   x = 1,025.84