Finding the Fourth Proportional to 3,407.91, 4,704.12 and 2,288.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,407.91 : 4,704.12 = 2,288.22 : x
2. Step 2: Convert to fraction form
   3,407.91/4,704.12 = 2,288.22/x
3. Step 3: Cross multiply
   3,407.91x = 4,704.12 × 2,288.22
4. Step 4: Simplify right side
   3,407.91x = 10,764,061.47
5. Step 5: Solve for x
   x = 10,764,061.47/3,407.91
6. Step 6: Final answer
   x = 3,158.55