Finding the Fourth Proportional to 3,577.77, 4,937.94 and 2,086.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,577.77 : 4,937.94 = 2,086.56 : x
2. Step 2: Convert to fraction form
   3,577.77/4,937.94 = 2,086.56/x
3. Step 3: Cross multiply
   3,577.77x = 4,937.94 × 2,086.56
4. Step 4: Simplify right side
   3,577.77x = 10,303,308.09
5. Step 5: Solve for x
   x = 10,303,308.09/3,577.77
6. Step 6: Final answer
   x = 2,879.81