Finding the Fourth Proportional to 2,016.56, 3,021.05 and 783.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.56 : 3,021.05 = 783.33 : x
2. Step 2: Convert to fraction form
   2,016.56/3,021.05 = 783.33/x
3. Step 3: Cross multiply
   2,016.56x = 3,021.05 × 783.33
4. Step 4: Simplify right side
   2,016.56x = 2,366,475.18
5. Step 5: Solve for x
   x = 2,366,475.18/2,016.56
6. Step 6: Final answer
   x = 1,173.52