Finding the Fourth Proportional to 3,765.95, 5,196.87 and 2,087.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,765.95 : 5,196.87 = 2,087.39 : x
2. Step 2: Convert to fraction form
   3,765.95/5,196.87 = 2,087.39/x
3. Step 3: Cross multiply
   3,765.95x = 5,196.87 × 2,087.39
4. Step 4: Simplify right side
   3,765.95x = 10,847,894.47
5. Step 5: Solve for x
   x = 10,847,894.47/3,765.95
6. Step 6: Final answer
   x = 2,880.52