Finding the Fourth Proportional to 3,679.85, 5,076.69 and 2,086.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,679.85 : 5,076.69 = 2,086.16 : x
2. Step 2: Convert to fraction form
   3,679.85/5,076.69 = 2,086.16/x
3. Step 3: Cross multiply
   3,679.85x = 5,076.69 × 2,086.16
4. Step 4: Simplify right side
   3,679.85x = 10,590,758.32
5. Step 5: Solve for x
   x = 10,590,758.32/3,679.85
6. Step 6: Final answer
   x = 2,878.04