Finding the Fourth Proportional to 2,398.39, 3,309.90 and 1,350.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.39 : 3,309.90 = 1,350.52 : x
2. Step 2: Convert to fraction form
   2,398.39/3,309.90 = 1,350.52/x
3. Step 3: Cross multiply
   2,398.39x = 3,309.90 × 1,350.52
4. Step 4: Simplify right side
   2,398.39x = 4,470,086.15
5. Step 5: Solve for x
   x = 4,470,086.15/2,398.39
6. Step 6: Final answer
   x = 1,863.79