Finding the Fourth Proportional to 2,398.80, 3,308.82 and 1,559.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.80 : 3,308.82 = 1,559.16 : x
2. Step 2: Convert to fraction form
   2,398.80/3,308.82 = 1,559.16/x
3. Step 3: Cross multiply
   2,398.80x = 3,308.82 × 1,559.16
4. Step 4: Simplify right side
   2,398.80x = 5,158,979.79
5. Step 5: Solve for x
   x = 5,158,979.79/2,398.80
6. Step 6: Final answer
   x = 2,150.65