Finding the Fourth Proportional to 2,283.82, 3,151.31 and 1,288.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,283.82 : 3,151.31 = 1,288.87 : x
2. Step 2: Convert to fraction form
   2,283.82/3,151.31 = 1,288.87/x
3. Step 3: Cross multiply
   2,283.82x = 3,151.31 × 1,288.87
4. Step 4: Simplify right side
   2,283.82x = 4,061,614.60
5. Step 5: Solve for x
   x = 4,061,614.60/2,283.82
6. Step 6: Final answer
   x = 1,778.43