Finding the Fourth Proportional to 2,016.21, 3,023.28 and 699.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.21 : 3,023.28 = 699.83 : x
2. Step 2: Convert to fraction form
   2,016.21/3,023.28 = 699.83/x
3. Step 3: Cross multiply
   2,016.21x = 3,023.28 × 699.83
4. Step 4: Simplify right side
   2,016.21x = 2,115,766.93
5. Step 5: Solve for x
   x = 2,115,766.93/2,016.21
6. Step 6: Final answer
   x = 1,049.38