Finding the Fourth Proportional to 2,282.88, 3,150.12 and 1,288.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,282.88 : 3,150.12 = 1,288.08 : x
2. Step 2: Convert to fraction form
   2,282.88/3,150.12 = 1,288.08/x
3. Step 3: Cross multiply
   2,282.88x = 3,150.12 × 1,288.08
4. Step 4: Simplify right side
   2,282.88x = 4,057,606.57
5. Step 5: Solve for x
   x = 4,057,606.57/2,282.88
6. Step 6: Final answer
   x = 1,777.41