Finding the Fourth Proportional to 938.32, 1,404.63 and 754.18

Step by Step Solution

1. Step 1: Write the proportion equation
   938.32 : 1,404.63 = 754.18 : x
2. Step 2: Convert to fraction form
   938.32/1,404.63 = 754.18/x
3. Step 3: Cross multiply
   938.32x = 1,404.63 × 754.18
4. Step 4: Simplify right side
   938.32x = 1,059,336.83
5. Step 5: Solve for x
   x = 1,059,336.83/938.32
6. Step 6: Final answer
   x = 1,128.98