Finding the Fourth Proportional to 3,686.54, 5,087.39 and 2,007.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686.54 : 5,087.39 = 2,007.94 : x
2. Step 2: Convert to fraction form
   3,686.54/5,087.39 = 2,007.94/x
3. Step 3: Cross multiply
   3,686.54x = 5,087.39 × 2,007.94
4. Step 4: Simplify right side
   3,686.54x = 10,215,166.18
5. Step 5: Solve for x
   x = 10,215,166.18/3,686.54
6. Step 6: Final answer
   x = 2,770.94