Finding the Fourth Proportional to 2,212.16, 3,317.42 and 731.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.16 : 3,317.42 = 731.10 : x
2. Step 2: Convert to fraction form
   2,212.16/3,317.42 = 731.10/x
3. Step 3: Cross multiply
   2,212.16x = 3,317.42 × 731.10
4. Step 4: Simplify right side
   2,212.16x = 2,425,380.03
5. Step 5: Solve for x
   x = 2,425,380.03/2,212.16
6. Step 6: Final answer
   x = 1,096.39