Finding the Fourth Proportional to 2,693.88, 4,039.52 and 938.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,693.88 : 4,039.52 = 938.85 : x
2. Step 2: Convert to fraction form
   2,693.88/4,039.52 = 938.85/x
3. Step 3: Cross multiply
   2,693.88x = 4,039.52 × 938.85
4. Step 4: Simplify right side
   2,693.88x = 3,792,483.15
5. Step 5: Solve for x
   x = 3,792,483.15/2,693.88
6. Step 6: Final answer
   x = 1,407.81