Finding the Fourth Proportional to 2,139.08, 2,952.71 and 1,255.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139.08 : 2,952.71 = 1,255.62 : x
2. Step 2: Convert to fraction form
   2,139.08/2,952.71 = 1,255.62/x
3. Step 3: Cross multiply
   2,139.08x = 2,952.71 × 1,255.62
4. Step 4: Simplify right side
   2,139.08x = 3,707,481.73
5. Step 5: Solve for x
   x = 3,707,481.73/2,139.08
6. Step 6: Final answer
   x = 1,733.21