Finding the Fourth Proportional to 8,770.82, 13,155.87 and 2,196.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,770.82 : 13,155.87 = 2,196.86 : x
2. Step 2: Convert to fraction form
   8,770.82/13,155.87 = 2,196.86/x
3. Step 3: Cross multiply
   8,770.82x = 13,155.87 × 2,196.86
4. Step 4: Simplify right side
   8,770.82x = 28,901,604.57
5. Step 5: Solve for x
   x = 28,901,604.57/8,770.82
6. Step 6: Final answer
   x = 3,295.20