Finding the Fourth Proportional to 2,654.09, 3,981.20 and 922.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.09 : 3,981.20 = 922.71 : x
2. Step 2: Convert to fraction form
   2,654.09/3,981.20 = 922.71/x
3. Step 3: Cross multiply
   2,654.09x = 3,981.20 × 922.71
4. Step 4: Simplify right side
   2,654.09x = 3,673,488.44
5. Step 5: Solve for x
   x = 3,673,488.44/2,654.09
6. Step 6: Final answer
   x = 1,384.09