Finding the Fourth Proportional to 2,398.31, 3,309.98 and 1,350.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.31 : 3,309.98 = 1,350.58 : x
2. Step 2: Convert to fraction form
   2,398.31/3,309.98 = 1,350.58/x
3. Step 3: Cross multiply
   2,398.31x = 3,309.98 × 1,350.58
4. Step 4: Simplify right side
   2,398.31x = 4,470,392.79
5. Step 5: Solve for x
   x = 4,470,392.79/2,398.31
6. Step 6: Final answer
   x = 1,863.98