Finding the Fourth Proportional to 2,016.80, 3,024.84 and 784.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.80 : 3,024.84 = 784.23 : x
2. Step 2: Convert to fraction form
   2,016.80/3,024.84 = 784.23/x
3. Step 3: Cross multiply
   2,016.80x = 3,024.84 × 784.23
4. Step 4: Simplify right side
   2,016.80x = 2,372,178.89
5. Step 5: Solve for x
   x = 2,372,178.89/2,016.80
6. Step 6: Final answer
   x = 1,176.21