Finding the Fourth Proportional to 2,654.49, 3,981.22 and 2,522.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.49 : 3,981.22 = 2,522.78 : x
2. Step 2: Convert to fraction form
   2,654.49/3,981.22 = 2,522.78/x
3. Step 3: Cross multiply
   2,654.49x = 3,981.22 × 2,522.78
4. Step 4: Simplify right side
   2,654.49x = 10,043,752.14
5. Step 5: Solve for x
   x = 10,043,752.14/2,654.49
6. Step 6: Final answer
   x = 3,783.68