Finding the Fourth Proportional to 2,630.27, 3,942.68 and 1,069.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,630.27 : 3,942.68 = 1,069.61 : x
2. Step 2: Convert to fraction form
   2,630.27/3,942.68 = 1,069.61/x
3. Step 3: Cross multiply
   2,630.27x = 3,942.68 × 1,069.61
4. Step 4: Simplify right side
   2,630.27x = 4,217,104.89
5. Step 5: Solve for x
   x = 4,217,104.89/2,630.27
6. Step 6: Final answer
   x = 1,603.30