Finding the Fourth Proportional to 2,398.82, 3,310.34 and 1,404.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.82 : 3,310.34 = 1,404.61 : x
2. Step 2: Convert to fraction form
   2,398.82/3,310.34 = 1,404.61/x
3. Step 3: Cross multiply
   2,398.82x = 3,310.34 × 1,404.61
4. Step 4: Simplify right side
   2,398.82x = 4,649,721.37
5. Step 5: Solve for x
   x = 4,649,721.37/2,398.82
6. Step 6: Final answer
   x = 1,938.34