Finding the Fourth Proportional to 2,686.52, 4,029.70 and 738.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686.52 : 4,029.70 = 738.71 : x
2. Step 2: Convert to fraction form
   2,686.52/4,029.70 = 738.71/x
3. Step 3: Cross multiply
   2,686.52x = 4,029.70 × 738.71
4. Step 4: Simplify right side
   2,686.52x = 2,976,779.69
5. Step 5: Solve for x
   x = 2,976,779.69/2,686.52
6. Step 6: Final answer
   x = 1,108.04