Finding the Fourth Proportional to 3,765.59, 5,196.78 and 2,087.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,765.59 : 5,196.78 = 2,087.54 : x
2. Step 2: Convert to fraction form
   3,765.59/5,196.78 = 2,087.54/x
3. Step 3: Cross multiply
   3,765.59x = 5,196.78 × 2,087.54
4. Step 4: Simplify right side
   3,765.59x = 10,848,460.14
5. Step 5: Solve for x
   x = 10,848,460.14/3,765.59
6. Step 6: Final answer
   x = 2,880.95