Finding the Fourth Proportional to 3,960.09, 5,936.01 and 1,325.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,960.09 : 5,936.01 = 1,325.61 : x
2. Step 2: Convert to fraction form
   3,960.09/5,936.01 = 1,325.61/x
3. Step 3: Cross multiply
   3,960.09x = 5,936.01 × 1,325.61
4. Step 4: Simplify right side
   3,960.09x = 7,868,834.22
5. Step 5: Solve for x
   x = 7,868,834.22/3,960.09
6. Step 6: Final answer
   x = 1,987.03