Finding the Fourth Proportional to 2,443.92, 3,658.90 and 1,620.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.92 : 3,658.90 = 1,620.56 : x
2. Step 2: Convert to fraction form
   2,443.92/3,658.90 = 1,620.56/x
3. Step 3: Cross multiply
   2,443.92x = 3,658.90 × 1,620.56
4. Step 4: Simplify right side
   2,443.92x = 5,929,466.98
5. Step 5: Solve for x
   x = 5,929,466.98/2,443.92
6. Step 6: Final answer
   x = 2,426.21