Finding the Fourth Proportional to 3,931.35, 5,896.90 and 969.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,931.35 : 5,896.90 = 969.81 : x
2. Step 2: Convert to fraction form
   3,931.35/5,896.90 = 969.81/x
3. Step 3: Cross multiply
   3,931.35x = 5,896.90 × 969.81
4. Step 4: Simplify right side
   3,931.35x = 5,718,872.59
5. Step 5: Solve for x
   x = 5,718,872.59/3,931.35
6. Step 6: Final answer
   x = 1,454.68