Finding the Fourth Proportional to 2,017.69, 3,024.70 and 1,042.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.69 : 3,024.70 = 1,042.85 : x
2. Step 2: Convert to fraction form
   2,017.69/3,024.70 = 1,042.85/x
3. Step 3: Cross multiply
   2,017.69x = 3,024.70 × 1,042.85
4. Step 4: Simplify right side
   2,017.69x = 3,154,308.40
5. Step 5: Solve for x
   x = 3,154,308.40/2,017.69
6. Step 6: Final answer
   x = 1,563.33