Finding the Fourth Proportional to 2,340.03, 3,229.89 and 1,455.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,340.03 : 3,229.89 = 1,455.31 : x
2. Step 2: Convert to fraction form
   2,340.03/3,229.89 = 1,455.31/x
3. Step 3: Cross multiply
   2,340.03x = 3,229.89 × 1,455.31
4. Step 4: Simplify right side
   2,340.03x = 4,700,467.79
5. Step 5: Solve for x
   x = 4,700,467.79/2,340.03
6. Step 6: Final answer
   x = 2,008.72