Finding the Fourth Proportional to 2,720.71, 4,062.56 and 2,566.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,720.71 : 4,062.56 = 2,566.70 : x
2. Step 2: Convert to fraction form
   2,720.71/4,062.56 = 2,566.70/x
3. Step 3: Cross multiply
   2,720.71x = 4,062.56 × 2,566.70
4. Step 4: Simplify right side
   2,720.71x = 10,427,372.75
5. Step 5: Solve for x
   x = 10,427,372.75/2,720.71
6. Step 6: Final answer
   x = 3,832.59