Finding the Fourth Proportional to 1,042.93, 1,438.72 and 929.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,042.93 : 1,438.72 = 929.32 : x
2. Step 2: Convert to fraction form
   1,042.93/1,438.72 = 929.32/x
3. Step 3: Cross multiply
   1,042.93x = 1,438.72 × 929.32
4. Step 4: Simplify right side
   1,042.93x = 1,337,031.27
5. Step 5: Solve for x
   x = 1,337,031.27/1,042.93
6. Step 6: Final answer
   x = 1,282.00