Finding the Fourth Proportional to 3,658.56, 5,048.28 and 2,086.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,658.56 : 5,048.28 = 2,086.08 : x
2. Step 2: Convert to fraction form
   3,658.56/5,048.28 = 2,086.08/x
3. Step 3: Cross multiply
   3,658.56x = 5,048.28 × 2,086.08
4. Step 4: Simplify right side
   3,658.56x = 10,531,115.94
5. Step 5: Solve for x
   x = 10,531,115.94/3,658.56
6. Step 6: Final answer
   x = 2,878.49