Finding the Fourth Proportional to 3,658.15, 5,047.58 and 2,086.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,658.15 : 5,047.58 = 2,086.24 : x
2. Step 2: Convert to fraction form
   3,658.15/5,047.58 = 2,086.24/x
3. Step 3: Cross multiply
   3,658.15x = 5,047.58 × 2,086.24
4. Step 4: Simplify right side
   3,658.15x = 10,530,452.87
5. Step 5: Solve for x
   x = 10,530,452.87/3,658.15
6. Step 6: Final answer
   x = 2,878.63