Finding the Fourth Proportional to 2,517.06, 3,473.55 and 1,398.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.06 : 3,473.55 = 1,398.18 : x
2. Step 2: Convert to fraction form
   2,517.06/3,473.55 = 1,398.18/x
3. Step 3: Cross multiply
   2,517.06x = 3,473.55 × 1,398.18
4. Step 4: Simplify right side
   2,517.06x = 4,856,648.14
5. Step 5: Solve for x
   x = 4,856,648.14/2,517.06
6. Step 6: Final answer
   x = 1,929.49