Finding the Fourth Proportional to 2,649.09, 3,967.68 and 2,598.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,649.09 : 3,967.68 = 2,598.27 : x
2. Step 2: Convert to fraction form
   2,649.09/3,967.68 = 2,598.27/x
3. Step 3: Cross multiply
   2,649.09x = 3,967.68 × 2,598.27
4. Step 4: Simplify right side
   2,649.09x = 10,309,103.91
5. Step 5: Solve for x
   x = 10,309,103.91/2,649.09
6. Step 6: Final answer
   x = 3,891.56