Finding the Fourth Proportional to 2,159.52, 3,239.75 and 698.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159.52 : 3,239.75 = 698.82 : x
2. Step 2: Convert to fraction form
   2,159.52/3,239.75 = 698.82/x
3. Step 3: Cross multiply
   2,159.52x = 3,239.75 × 698.82
4. Step 4: Simplify right side
   2,159.52x = 2,264,002.10
5. Step 5: Solve for x
   x = 2,264,002.10/2,159.52
6. Step 6: Final answer
   x = 1,048.38