Finding the Fourth Proportional to 2,517.56, 3,474.06 and 1,398.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.56 : 3,474.06 = 1,398.44 : x
2. Step 2: Convert to fraction form
   2,517.56/3,474.06 = 1,398.44/x
3. Step 3: Cross multiply
   2,517.56x = 3,474.06 × 1,398.44
4. Step 4: Simplify right side
   2,517.56x = 4,858,264.47
5. Step 5: Solve for x
   x = 4,858,264.47/2,517.56
6. Step 6: Final answer
   x = 1,929.75