Finding the Fourth Proportional to 1,802.85, 2,488.15 and 1,016.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,802.85 : 2,488.15 = 1,016.88 : x
2. Step 2: Convert to fraction form
   1,802.85/2,488.15 = 1,016.88/x
3. Step 3: Cross multiply
   1,802.85x = 2,488.15 × 1,016.88
4. Step 4: Simplify right side
   1,802.85x = 2,530,149.97
5. Step 5: Solve for x
   x = 2,530,149.97/1,802.85
6. Step 6: Final answer
   x = 1,403.42