Finding the Fourth Proportional to 3,686.06, 5,086.87 and 2,007.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686.06 : 5,086.87 = 2,007.58 : x
2. Step 2: Convert to fraction form
   3,686.06/5,086.87 = 2,007.58/x
3. Step 3: Cross multiply
   3,686.06x = 5,086.87 × 2,007.58
4. Step 4: Simplify right side
   3,686.06x = 10,212,298.47
5. Step 5: Solve for x
   x = 10,212,298.47/3,686.06
6. Step 6: Final answer
   x = 2,770.52