Finding the Fourth Proportional to 2,647.28, 3,649.01 and 2,086.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647.28 : 3,649.01 = 2,086.82 : x
2. Step 2: Convert to fraction form
   2,647.28/3,649.01 = 2,086.82/x
3. Step 3: Cross multiply
   2,647.28x = 3,649.01 × 2,086.82
4. Step 4: Simplify right side
   2,647.28x = 7,614,798.37
5. Step 5: Solve for x
   x = 7,614,798.37/2,647.28
6. Step 6: Final answer
   x = 2,876.47