Finding the Fourth Proportional to 2,517.27, 3,473.58 and 1,398.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.27 : 3,473.58 = 1,398.12 : x
2. Step 2: Convert to fraction form
   2,517.27/3,473.58 = 1,398.12/x
3. Step 3: Cross multiply
   2,517.27x = 3,473.58 × 1,398.12
4. Step 4: Simplify right side
   2,517.27x = 4,856,481.67
5. Step 5: Solve for x
   x = 4,856,481.67/2,517.27
6. Step 6: Final answer
   x = 1,929.27