Finding the Fourth Proportional to 2,282.84, 3,150.31 and 1,288.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,282.84 : 3,150.31 = 1,288.10 : x
2. Step 2: Convert to fraction form
   2,282.84/3,150.31 = 1,288.10/x
3. Step 3: Cross multiply
   2,282.84x = 3,150.31 × 1,288.10
4. Step 4: Simplify right side
   2,282.84x = 4,057,898.56
5. Step 5: Solve for x
   x = 4,057,898.56/2,282.84
6. Step 6: Final answer
   x = 1,777.57