Finding the Fourth Proportional to 2,443.20, 3,371.60 and 1,324.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.20 : 3,371.60 = 1,324.10 : x
2. Step 2: Convert to fraction form
   2,443.20/3,371.60 = 1,324.10/x
3. Step 3: Cross multiply
   2,443.20x = 3,371.60 × 1,324.10
4. Step 4: Simplify right side
   2,443.20x = 4,464,335.56
5. Step 5: Solve for x
   x = 4,464,335.56/2,443.20
6. Step 6: Final answer
   x = 1,827.25