Finding the Fourth Proportional to 2,517.41, 3,473.94 and 1,398.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.41 : 3,473.94 = 1,398.38 : x
2. Step 2: Convert to fraction form
   2,517.41/3,473.94 = 1,398.38/x
3. Step 3: Cross multiply
   2,517.41x = 3,473.94 × 1,398.38
4. Step 4: Simplify right side
   2,517.41x = 4,857,870.85
5. Step 5: Solve for x
   x = 4,857,870.85/2,517.41
6. Step 6: Final answer
   x = 1,929.71