Finding the Fourth Proportional to 2,283.05, 3,150.45 and 1,288.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,283.05 : 3,150.45 = 1,288.27 : x
2. Step 2: Convert to fraction form
   2,283.05/3,150.45 = 1,288.27/x
3. Step 3: Cross multiply
   2,283.05x = 3,150.45 × 1,288.27
4. Step 4: Simplify right side
   2,283.05x = 4,058,634.16
5. Step 5: Solve for x
   x = 4,058,634.16/2,283.05
6. Step 6: Final answer
   x = 1,777.72