Finding the Fourth Proportional to 2,629.61, 3,936.54 and 2,536.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,629.61 : 3,936.54 = 2,536.15 : x
2. Step 2: Convert to fraction form
   2,629.61/3,936.54 = 2,536.15/x
3. Step 3: Cross multiply
   2,629.61x = 3,936.54 × 2,536.15
4. Step 4: Simplify right side
   2,629.61x = 9,983,655.92
5. Step 5: Solve for x
   x = 9,983,655.92/2,629.61
6. Step 6: Final answer
   x = 3,796.63