Finding the Fourth Proportional to 2,340.12, 3,229.71 and 1,456.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,340.12 : 3,229.71 = 1,456.20 : x
2. Step 2: Convert to fraction form
   2,340.12/3,229.71 = 1,456.20/x
3. Step 3: Cross multiply
   2,340.12x = 3,229.71 × 1,456.20
4. Step 4: Simplify right side
   2,340.12x = 4,703,103.70
5. Step 5: Solve for x
   x = 4,703,103.70/2,340.12
6. Step 6: Final answer
   x = 2,009.77