Finding the Fourth Proportional to 3,685.88, 5,086.50 and 2,007.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,685.88 : 5,086.50 = 2,007.38 : x
2. Step 2: Convert to fraction form
   3,685.88/5,086.50 = 2,007.38/x
3. Step 3: Cross multiply
   3,685.88x = 5,086.50 × 2,007.38
4. Step 4: Simplify right side
   3,685.88x = 10,210,538.37
5. Step 5: Solve for x
   x = 10,210,538.37/3,685.88
6. Step 6: Final answer
   x = 2,770.18