Finding the Fourth Proportional to 2,654.86, 3,982.47 and 923.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.86 : 3,982.47 = 923.62 : x
2. Step 2: Convert to fraction form
   2,654.86/3,982.47 = 923.62/x
3. Step 3: Cross multiply
   2,654.86x = 3,982.47 × 923.62
4. Step 4: Simplify right side
   2,654.86x = 3,678,288.94
5. Step 5: Solve for x
   x = 3,678,288.94/2,654.86
6. Step 6: Final answer
   x = 1,385.49