Finding the Fourth Proportional to 2,011.96, 3,016.72 and 778.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.96 : 3,016.72 = 778.33 : x
2. Step 2: Convert to fraction form
   2,011.96/3,016.72 = 778.33/x
3. Step 3: Cross multiply
   2,011.96x = 3,016.72 × 778.33
4. Step 4: Simplify right side
   2,011.96x = 2,348,003.68
5. Step 5: Solve for x
   x = 2,348,003.68/2,011.96
6. Step 6: Final answer
   x = 1,167.02