Finding the Fourth Proportional to 2,282.97, 3,150.42 and 1,288.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,282.97 : 3,150.42 = 1,288.12 : x
2. Step 2: Convert to fraction form
   2,282.97/3,150.42 = 1,288.12/x
3. Step 3: Cross multiply
   2,282.97x = 3,150.42 × 1,288.12
4. Step 4: Simplify right side
   2,282.97x = 4,058,119.01
5. Step 5: Solve for x
   x = 4,058,119.01/2,282.97
6. Step 6: Final answer
   x = 1,777.56