Finding the Fourth Proportional to 2,649.62, 3,965.91 and 2,547.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,649.62 : 3,965.91 = 2,547.56 : x
2. Step 2: Convert to fraction form
   2,649.62/3,965.91 = 2,547.56/x
3. Step 3: Cross multiply
   2,649.62x = 3,965.91 × 2,547.56
4. Step 4: Simplify right side
   2,649.62x = 10,103,373.85
5. Step 5: Solve for x
   x = 10,103,373.85/2,649.62
6. Step 6: Final answer
   x = 3,813.15