Finding the Fourth Proportional to 2,282.62, 3,150.15 and 1,288.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,282.62 : 3,150.15 = 1,288.15 : x
2. Step 2: Convert to fraction form
   2,282.62/3,150.15 = 1,288.15/x
3. Step 3: Cross multiply
   2,282.62x = 3,150.15 × 1,288.15
4. Step 4: Simplify right side
   2,282.62x = 4,057,865.72
5. Step 5: Solve for x
   x = 4,057,865.72/2,282.62
6. Step 6: Final answer
   x = 1,777.72