Finding the Fourth Proportional to 2,042.80, 3,066.12 and 1,069.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.80 : 3,066.12 = 1,069.60 : x
2. Step 2: Convert to fraction form
   2,042.80/3,066.12 = 1,069.60/x
3. Step 3: Cross multiply
   2,042.80x = 3,066.12 × 1,069.60
4. Step 4: Simplify right side
   2,042.80x = 3,279,521.95
5. Step 5: Solve for x
   x = 3,279,521.95/2,042.80
6. Step 6: Final answer
   x = 1,605.41