Finding the Fourth Proportional to 2,876.69, 3,971.17 and 2,168.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,876.69 : 3,971.17 = 2,168.82 : x
2. Step 2: Convert to fraction form
   2,876.69/3,971.17 = 2,168.82/x
3. Step 3: Cross multiply
   2,876.69x = 3,971.17 × 2,168.82
4. Step 4: Simplify right side
   2,876.69x = 8,612,752.92
5. Step 5: Solve for x
   x = 8,612,752.92/2,876.69
6. Step 6: Final answer
   x = 2,993.98