Finding the Fourth Proportional to 3,679.42, 5,077.56 and 2,086.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,679.42 : 5,077.56 = 2,086.24 : x
2. Step 2: Convert to fraction form
   3,679.42/5,077.56 = 2,086.24/x
3. Step 3: Cross multiply
   3,679.42x = 5,077.56 × 2,086.24
4. Step 4: Simplify right side
   3,679.42x = 10,593,008.77
5. Step 5: Solve for x
   x = 10,593,008.77/3,679.42
6. Step 6: Final answer
   x = 2,878.99