Finding the Fourth Proportional to 2,339.25, 3,509.48 and 878.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.25 : 3,509.48 = 878.52 : x
2. Step 2: Convert to fraction form
   2,339.25/3,509.48 = 878.52/x
3. Step 3: Cross multiply
   2,339.25x = 3,509.48 × 878.52
4. Step 4: Simplify right side
   2,339.25x = 3,083,148.37
5. Step 5: Solve for x
   x = 3,083,148.37/2,339.25
6. Step 6: Final answer
   x = 1,318.01