Finding the Fourth Proportional to 2,635.44, 3,951.82 and 879.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.44 : 3,951.82 = 879.82 : x
2. Step 2: Convert to fraction form
   2,635.44/3,951.82 = 879.82/x
3. Step 3: Cross multiply
   2,635.44x = 3,951.82 × 879.82
4. Step 4: Simplify right side
   2,635.44x = 3,476,876.55
5. Step 5: Solve for x
   x = 3,476,876.55/2,635.44
6. Step 6: Final answer
   x = 1,319.28