Finding the Fourth Proportional to 2,283.03, 3,150.81 and 1,288.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,283.03 : 3,150.81 = 1,288.62 : x
2. Step 2: Convert to fraction form
   2,283.03/3,150.81 = 1,288.62/x
3. Step 3: Cross multiply
   2,283.03x = 3,150.81 × 1,288.62
4. Step 4: Simplify right side
   2,283.03x = 4,060,196.78
5. Step 5: Solve for x
   x = 4,060,196.78/2,283.03
6. Step 6: Final answer
   x = 1,778.42