Finding the Fourth Proportional to 2,016.31, 3,023.68 and 783.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.31 : 3,023.68 = 783.56 : x
2. Step 2: Convert to fraction form
   2,016.31/3,023.68 = 783.56/x
3. Step 3: Cross multiply
   2,016.31x = 3,023.68 × 783.56
4. Step 4: Simplify right side
   2,016.31x = 2,369,219.58
5. Step 5: Solve for x
   x = 2,369,219.58/2,016.31
6. Step 6: Final answer
   x = 1,175.03