Finding the Fourth Proportional to 3,942.72, 5,916.72 and 1,634.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,942.72 : 5,916.72 = 1,634.22 : x
2. Step 2: Convert to fraction form
   3,942.72/5,916.72 = 1,634.22/x
3. Step 3: Cross multiply
   3,942.72x = 5,916.72 × 1,634.22
4. Step 4: Simplify right side
   3,942.72x = 9,669,222.16
5. Step 5: Solve for x
   x = 9,669,222.16/3,942.72
6. Step 6: Final answer
   x = 2,452.42