Finding the Fourth Proportional to 3,402.56, 5,106.40 and 2,726.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,402.56 : 5,106.40 = 2,726.72 : x
2. Step 2: Convert to fraction form
   3,402.56/5,106.40 = 2,726.72/x
3. Step 3: Cross multiply
   3,402.56x = 5,106.40 × 2,726.72
4. Step 4: Simplify right side
   3,402.56x = 13,923,723.01
5. Step 5: Solve for x
   x = 13,923,723.01/3,402.56
6. Step 6: Final answer
   x = 4,092.13