Finding the Fourth Proportional to 2,629.15, 3,936.98 and 2,551.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,629.15 : 3,936.98 = 2,551.29 : x
2. Step 2: Convert to fraction form
   2,629.15/3,936.98 = 2,551.29/x
3. Step 3: Cross multiply
   2,629.15x = 3,936.98 × 2,551.29
4. Step 4: Simplify right side
   2,629.15x = 10,044,377.70
5. Step 5: Solve for x
   x = 10,044,377.70/2,629.15
6. Step 6: Final answer
   x = 3,820.39