Finding the Fourth Proportional to 2,283.10, 3,150.67 and 1,288.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,283.10 : 3,150.67 = 1,288.38 : x
2. Step 2: Convert to fraction form
   2,283.10/3,150.67 = 1,288.38/x
3. Step 3: Cross multiply
   2,283.10x = 3,150.67 × 1,288.38
4. Step 4: Simplify right side
   2,283.10x = 4,059,260.21
5. Step 5: Solve for x
   x = 4,059,260.21/2,283.10
6. Step 6: Final answer
   x = 1,777.96