Finding the Fourth Proportional to 2,654.88, 3,983.12 and 923.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.88 : 3,983.12 = 923.50 : x
2. Step 2: Convert to fraction form
   2,654.88/3,983.12 = 923.50/x
3. Step 3: Cross multiply
   2,654.88x = 3,983.12 × 923.50
4. Step 4: Simplify right side
   2,654.88x = 3,678,411.32
5. Step 5: Solve for x
   x = 3,678,411.32/2,654.88
6. Step 6: Final answer
   x = 1,385.53