Finding the Fourth Proportional to 2,350.28, 3,243.42 and 1,288.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,350.28 : 3,243.42 = 1,288.02 : x
2. Step 2: Convert to fraction form
   2,350.28/3,243.42 = 1,288.02/x
3. Step 3: Cross multiply
   2,350.28x = 3,243.42 × 1,288.02
4. Step 4: Simplify right side
   2,350.28x = 4,177,589.83
5. Step 5: Solve for x
   x = 4,177,589.83/2,350.28
6. Step 6: Final answer
   x = 1,777.49