Finding the Fourth Proportional to 2,772.52, 4,158.32 and 923.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,772.52 : 4,158.32 = 923.29 : x
2. Step 2: Convert to fraction form
   2,772.52/4,158.32 = 923.29/x
3. Step 3: Cross multiply
   2,772.52x = 4,158.32 × 923.29
4. Step 4: Simplify right side
   2,772.52x = 3,839,335.27
5. Step 5: Solve for x
   x = 3,839,335.27/2,772.52
6. Step 6: Final answer
   x = 1,384.78