Finding the Fourth Proportional to 3,966.46, 5,483.46 and 3,929.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,966.46 : 5,483.46 = 3,929.10 : x
2. Step 2: Convert to fraction form
   3,966.46/5,483.46 = 3,929.10/x
3. Step 3: Cross multiply
   3,966.46x = 5,483.46 × 3,929.10
4. Step 4: Simplify right side
   3,966.46x = 21,545,062.69
5. Step 5: Solve for x
   x = 21,545,062.69/3,966.46
6. Step 6: Final answer
   x = 5,431.81