Finding the Fourth Proportional to 2,271.72, 3,405.42 and 1,447.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.72 : 3,405.42 = 1,447.68 : x
2. Step 2: Convert to fraction form
   2,271.72/3,405.42 = 1,447.68/x
3. Step 3: Cross multiply
   2,271.72x = 3,405.42 × 1,447.68
4. Step 4: Simplify right side
   2,271.72x = 4,929,958.43
5. Step 5: Solve for x
   x = 4,929,958.43/2,271.72
6. Step 6: Final answer
   x = 2,170.14