Finding the Fourth Proportional to 2,282.98, 3,150.90 and 1,288.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,282.98 : 3,150.90 = 1,288.54 : x
2. Step 2: Convert to fraction form
   2,282.98/3,150.90 = 1,288.54/x
3. Step 3: Cross multiply
   2,282.98x = 3,150.90 × 1,288.54
4. Step 4: Simplify right side
   2,282.98x = 4,060,060.69
5. Step 5: Solve for x
   x = 4,060,060.69/2,282.98
6. Step 6: Final answer
   x = 1,778.40