Finding the Fourth Proportional to 2,517.42, 3,473.96 and 1,398.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.42 : 3,473.96 = 1,398.41 : x
2. Step 2: Convert to fraction form
   2,517.42/3,473.96 = 1,398.41/x
3. Step 3: Cross multiply
   2,517.42x = 3,473.96 × 1,398.41
4. Step 4: Simplify right side
   2,517.42x = 4,857,996.04
5. Step 5: Solve for x
   x = 4,857,996.04/2,517.42
6. Step 6: Final answer
   x = 1,929.75