Finding the Fourth Proportional to 2,268.80, 3,128.76 and 1,522.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,268.80 : 3,128.76 = 1,522.80 : x
2. Step 2: Convert to fraction form
   2,268.80/3,128.76 = 1,522.80/x
3. Step 3: Cross multiply
   2,268.80x = 3,128.76 × 1,522.80
4. Step 4: Simplify right side
   2,268.80x = 4,764,475.73
5. Step 5: Solve for x
   x = 4,764,475.73/2,268.80
6. Step 6: Final answer
   x = 2,100.00