Finding the Fourth Proportional to 2,938.46, 4,407.71 and 747.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,938.46 : 4,407.71 = 747.18 : x
2. Step 2: Convert to fraction form
   2,938.46/4,407.71 = 747.18/x
3. Step 3: Cross multiply
   2,938.46x = 4,407.71 × 747.18
4. Step 4: Simplify right side
   2,938.46x = 3,293,349.02
5. Step 5: Solve for x
   x = 3,293,349.02/2,938.46
6. Step 6: Final answer
   x = 1,120.78