Finding the Fourth Proportional to 2,158.27, 3,234.69 and 924.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158.27 : 3,234.69 = 924.23 : x
2. Step 2: Convert to fraction form
   2,158.27/3,234.69 = 924.23/x
3. Step 3: Cross multiply
   2,158.27x = 3,234.69 × 924.23
4. Step 4: Simplify right side
   2,158.27x = 2,989,605.63
5. Step 5: Solve for x
   x = 2,989,605.63/2,158.27
6. Step 6: Final answer
   x = 1,385.19