Finding the Fourth Proportional to 3,765.67, 5,196.82 and 2,087.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,765.67 : 5,196.82 = 2,087.28 : x
2. Step 2: Convert to fraction form
   3,765.67/5,196.82 = 2,087.28/x
3. Step 3: Cross multiply
   3,765.67x = 5,196.82 × 2,087.28
4. Step 4: Simplify right side
   3,765.67x = 10,847,218.45
5. Step 5: Solve for x
   x = 10,847,218.45/3,765.67
6. Step 6: Final answer
   x = 2,880.55