Finding the Fourth Proportional to 2,339.82, 3,510.11 and 879.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.82 : 3,510.11 = 879.09 : x
2. Step 2: Convert to fraction form
   2,339.82/3,510.11 = 879.09/x
3. Step 3: Cross multiply
   2,339.82x = 3,510.11 × 879.09
4. Step 4: Simplify right side
   2,339.82x = 3,085,702.60
5. Step 5: Solve for x
   x = 3,085,702.60/2,339.82
6. Step 6: Final answer
   x = 1,318.78