Finding the Fourth Proportional to 6,578.82, 9,868.76 and 2,196.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,578.82 : 9,868.76 = 2,196.28 : x
2. Step 2: Convert to fraction form
   6,578.82/9,868.76 = 2,196.28/x
3. Step 3: Cross multiply
   6,578.82x = 9,868.76 × 2,196.28
4. Step 4: Simplify right side
   6,578.82x = 21,674,560.21
5. Step 5: Solve for x
   x = 21,674,560.21/6,578.82
6. Step 6: Final answer
   x = 3,294.60