Finding the Fourth Proportional to 2,654.17, 3,981.24 and 922.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.17 : 3,981.24 = 922.79 : x
2. Step 2: Convert to fraction form
   2,654.17/3,981.24 = 922.79/x
3. Step 3: Cross multiply
   2,654.17x = 3,981.24 × 922.79
4. Step 4: Simplify right side
   2,654.17x = 3,673,858.41
5. Step 5: Solve for x
   x = 3,673,858.41/2,654.17
6. Step 6: Final answer
   x = 1,384.18