Finding the Fourth Proportional to 2,625.71, 3,943.98 and 2,538.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,625.71 : 3,943.98 = 2,538.23 : x
2. Step 2: Convert to fraction form
   2,625.71/3,943.98 = 2,538.23/x
3. Step 3: Cross multiply
   2,625.71x = 3,943.98 × 2,538.23
4. Step 4: Simplify right side
   2,625.71x = 10,010,708.64
5. Step 5: Solve for x
   x = 10,010,708.64/2,625.71
6. Step 6: Final answer
   x = 3,812.58