Finding the Fourth Proportional to 2,625.77, 3,931.82 and 2,547.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,625.77 : 3,931.82 = 2,547.86 : x
2. Step 2: Convert to fraction form
   2,625.77/3,931.82 = 2,547.86/x
3. Step 3: Cross multiply
   2,625.77x = 3,931.82 × 2,547.86
4. Step 4: Simplify right side
   2,625.77x = 10,017,696.90
5. Step 5: Solve for x
   x = 10,017,696.90/2,625.77
6. Step 6: Final answer
   x = 3,815.15