Finding the Fourth Proportional to 2,649.85, 3,955.72 and 2,457.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,649.85 : 3,955.72 = 2,457.61 : x
2. Step 2: Convert to fraction form
   2,649.85/3,955.72 = 2,457.61/x
3. Step 3: Cross multiply
   2,649.85x = 3,955.72 × 2,457.61
4. Step 4: Simplify right side
   2,649.85x = 9,721,617.03
5. Step 5: Solve for x
   x = 9,721,617.03/2,649.85
6. Step 6: Final answer
   x = 3,668.74