Finding the Fourth Proportional to 3,765.24, 5,196.04 and 2,086.66

Step by Step Solution

1. Step 1: Write the proportion equation
   3,765.24 : 5,196.04 = 2,086.66 : x
2. Step 2: Convert to fraction form
   3,765.24/5,196.04 = 2,086.66/x
3. Step 3: Cross multiply
   3,765.24x = 5,196.04 × 2,086.66
4. Step 4: Simplify right side
   3,765.24x = 10,842,368.83
5. Step 5: Solve for x
   x = 10,842,368.83/3,765.24
6. Step 6: Final answer
   x = 2,879.60