Finding the Fourth Proportional to 3,447.23, 5,171.33 and 1,106.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,447.23 : 5,171.33 = 1,106.69 : x
2. Step 2: Convert to fraction form
   3,447.23/5,171.33 = 1,106.69/x
3. Step 3: Cross multiply
   3,447.23x = 5,171.33 × 1,106.69
4. Step 4: Simplify right side
   3,447.23x = 5,723,044.43
5. Step 5: Solve for x
   x = 5,723,044.43/3,447.23
6. Step 6: Final answer
   x = 1,660.18