Finding the Fourth Proportional to 2,016.72, 3,023.04 and 783.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.72 : 3,023.04 = 783.36 : x
2. Step 2: Convert to fraction form
   2,016.72/3,023.04 = 783.36/x
3. Step 3: Cross multiply
   2,016.72x = 3,023.04 × 783.36
4. Step 4: Simplify right side
   2,016.72x = 2,368,128.61
5. Step 5: Solve for x
   x = 2,368,128.61/2,016.72
6. Step 6: Final answer
   x = 1,174.25