Finding the Fourth Proportional to 2,350.35, 3,243.42 and 1,288.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,350.35 : 3,243.42 = 1,288.10 : x
2. Step 2: Convert to fraction form
   2,350.35/3,243.42 = 1,288.10/x
3. Step 3: Cross multiply
   2,350.35x = 3,243.42 × 1,288.10
4. Step 4: Simplify right side
   2,350.35x = 4,177,857.41
5. Step 5: Solve for x
   x = 4,177,857.41/2,350.35
6. Step 6: Final answer
   x = 1,777.55