Finding the Fourth Proportional to 3,429.81, 5,144.76 and 964.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,429.81 : 5,144.76 = 964.71 : x
2. Step 2: Convert to fraction form
   3,429.81/5,144.76 = 964.71/x
3. Step 3: Cross multiply
   3,429.81x = 5,144.76 × 964.71
4. Step 4: Simplify right side
   3,429.81x = 4,963,201.42
5. Step 5: Solve for x
   x = 4,963,201.42/3,429.81
6. Step 6: Final answer
   x = 1,447.08