Finding the Fourth Proportional to 3,679.41, 5,077.24 and 2,086.35

Step by Step Solution

1. Step 1: Write the proportion equation
   3,679.41 : 5,077.24 = 2,086.35 : x
2. Step 2: Convert to fraction form
   3,679.41/5,077.24 = 2,086.35/x
3. Step 3: Cross multiply
   3,679.41x = 5,077.24 × 2,086.35
4. Step 4: Simplify right side
   3,679.41x = 10,592,899.67
5. Step 5: Solve for x
   x = 10,592,899.67/3,679.41
6. Step 6: Final answer
   x = 2,878.97