Finding the Fourth Proportional to 2,629.97, 3,942.23 and 1,071.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,629.97 : 3,942.23 = 1,071.06 : x
2. Step 2: Convert to fraction form
   2,629.97/3,942.23 = 1,071.06/x
3. Step 3: Cross multiply
   2,629.97x = 3,942.23 × 1,071.06
4. Step 4: Simplify right side
   2,629.97x = 4,222,344.73
5. Step 5: Solve for x
   x = 4,222,344.73/2,629.97
6. Step 6: Final answer
   x = 1,605.47