Finding the Fourth Proportional to 1,744.24, 2,604.89 and 1,398.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,744.24 : 2,604.89 = 1,398.10 : x
2. Step 2: Convert to fraction form
   1,744.24/2,604.89 = 1,398.10/x
3. Step 3: Cross multiply
   1,744.24x = 2,604.89 × 1,398.10
4. Step 4: Simplify right side
   1,744.24x = 3,641,896.71
5. Step 5: Solve for x
   x = 3,641,896.71/1,744.24
6. Step 6: Final answer
   x = 2,087.96