Finding the Fourth Proportional to 2,522.60, 3,766.90 and 2,061.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.60 : 3,766.90 = 2,061.28 : x
2. Step 2: Convert to fraction form
   2,522.60/3,766.90 = 2,061.28/x
3. Step 3: Cross multiply
   2,522.60x = 3,766.90 × 2,061.28
4. Step 4: Simplify right side
   2,522.60x = 7,764,635.63
5. Step 5: Solve for x
   x = 7,764,635.63/2,522.60
6. Step 6: Final answer
   x = 3,078.03