Finding the Fourth Proportional to 2,710.09, 4,061.57 and 1,392.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,710.09 : 4,061.57 = 1,392.71 : x
2. Step 2: Convert to fraction form
   2,710.09/4,061.57 = 1,392.71/x
3. Step 3: Cross multiply
   2,710.09x = 4,061.57 × 1,392.71
4. Step 4: Simplify right side
   2,710.09x = 5,656,589.15
5. Step 5: Solve for x
   x = 5,656,589.15/2,710.09
6. Step 6: Final answer
   x = 2,087.23