Finding the Fourth Proportional to 2,654.80, 3,981.12 and 923.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.80 : 3,981.12 = 923.02 : x
2. Step 2: Convert to fraction form
   2,654.80/3,981.12 = 923.02/x
3. Step 3: Cross multiply
   2,654.80x = 3,981.12 × 923.02
4. Step 4: Simplify right side
   2,654.80x = 3,674,653.38
5. Step 5: Solve for x
   x = 3,674,653.38/2,654.80
6. Step 6: Final answer
   x = 1,384.15