Finding the Fourth Proportional to 2,016.45, 2,781.49 and 1,269.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.45 : 2,781.49 = 1,269.11 : x
2. Step 2: Convert to fraction form
   2,016.45/2,781.49 = 1,269.11/x
3. Step 3: Cross multiply
   2,016.45x = 2,781.49 × 1,269.11
4. Step 4: Simplify right side
   2,016.45x = 3,530,018.68
5. Step 5: Solve for x
   x = 3,530,018.68/2,016.45
6. Step 6: Final answer
   x = 1,750.61