Finding the Fourth Proportional to 2,517.10, 3,473.71 and 1,398.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.10 : 3,473.71 = 1,398.05 : x
2. Step 2: Convert to fraction form
   2,517.10/3,473.71 = 1,398.05/x
3. Step 3: Cross multiply
   2,517.10x = 3,473.71 × 1,398.05
4. Step 4: Simplify right side
   2,517.10x = 4,856,420.27
5. Step 5: Solve for x
   x = 4,856,420.27/2,517.10
6. Step 6: Final answer
   x = 1,929.37