Finding the Fourth Proportional to 2,162.43, 3,240.95 and 928.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.43 : 3,240.95 = 928.41 : x
2. Step 2: Convert to fraction form
   2,162.43/3,240.95 = 928.41/x
3. Step 3: Cross multiply
   2,162.43x = 3,240.95 × 928.41
4. Step 4: Simplify right side
   2,162.43x = 3,008,930.39
5. Step 5: Solve for x
   x = 3,008,930.39/2,162.43
6. Step 6: Final answer
   x = 1,391.46