Finding the Fourth Proportional to 2,231.91, 3,340.92 and 1,647.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231.91 : 3,340.92 = 1,647.56 : x
2. Step 2: Convert to fraction form
   2,231.91/3,340.92 = 1,647.56/x
3. Step 3: Cross multiply
   2,231.91x = 3,340.92 × 1,647.56
4. Step 4: Simplify right side
   2,231.91x = 5,504,380.69
5. Step 5: Solve for x
   x = 5,504,380.69/2,231.91
6. Step 6: Final answer
   x = 2,466.22