Finding the Fourth Proportional to 2,261.28, 3,103.98 and 2,086.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,261.28 : 3,103.98 = 2,086.32 : x
2. Step 2: Convert to fraction form
   2,261.28/3,103.98 = 2,086.32/x
3. Step 3: Cross multiply
   2,261.28x = 3,103.98 × 2,086.32
4. Step 4: Simplify right side
   2,261.28x = 6,475,895.55
5. Step 5: Solve for x
   x = 6,475,895.55/2,261.28
6. Step 6: Final answer
   x = 2,863.82