Finding the Fourth Proportional to 3,642.71, 5,028.82 and 2,581.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,642.71 : 5,028.82 = 2,581.34 : x
2. Step 2: Convert to fraction form
   3,642.71/5,028.82 = 2,581.34/x
3. Step 3: Cross multiply
   3,642.71x = 5,028.82 × 2,581.34
4. Step 4: Simplify right side
   3,642.71x = 12,981,062.62
5. Step 5: Solve for x
   x = 12,981,062.62/3,642.71
6. Step 6: Final answer
   x = 3,563.58