Finding the Fourth Proportional to 2,283.89, 3,151.71 and 1,289.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,283.89 : 3,151.71 = 1,289.14 : x
2. Step 2: Convert to fraction form
   2,283.89/3,151.71 = 1,289.14/x
3. Step 3: Cross multiply
   2,283.89x = 3,151.71 × 1,289.14
4. Step 4: Simplify right side
   2,283.89x = 4,062,995.43
5. Step 5: Solve for x
   x = 4,062,995.43/2,283.89
6. Step 6: Final answer
   x = 1,778.98