Finding the Fourth Proportional to 2,007.05, 2,761.47 and 1,960.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.05 : 2,761.47 = 1,960.41 : x
2. Step 2: Convert to fraction form
   2,007.05/2,761.47 = 1,960.41/x
3. Step 3: Cross multiply
   2,007.05x = 2,761.47 × 1,960.41
4. Step 4: Simplify right side
   2,007.05x = 5,413,623.76
5. Step 5: Solve for x
   x = 5,413,623.76/2,007.05
6. Step 6: Final answer
   x = 2,697.31