Finding the Fourth Proportional to 2,042.28, 3,062.61 and 1,069.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.28 : 3,062.61 = 1,069.20 : x
2. Step 2: Convert to fraction form
   2,042.28/3,062.61 = 1,069.20/x
3. Step 3: Cross multiply
   2,042.28x = 3,062.61 × 1,069.20
4. Step 4: Simplify right side
   2,042.28x = 3,274,542.61
5. Step 5: Solve for x
   x = 3,274,542.61/2,042.28
6. Step 6: Final answer
   x = 1,603.38