Finding the Fourth Proportional to 2,695.26, 4,042.76 and 939.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,695.26 : 4,042.76 = 939.72 : x
2. Step 2: Convert to fraction form
   2,695.26/4,042.76 = 939.72/x
3. Step 3: Cross multiply
   2,695.26x = 4,042.76 × 939.72
4. Step 4: Simplify right side
   2,695.26x = 3,799,062.43
5. Step 5: Solve for x
   x = 3,799,062.43/2,695.26
6. Step 6: Final answer
   x = 1,409.53