Finding the Fourth Proportional to 2,016.31, 2,782.48 and 1,120.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.31 : 2,782.48 = 1,120.06 : x
2. Step 2: Convert to fraction form
   2,016.31/2,782.48 = 1,120.06/x
3. Step 3: Cross multiply
   2,016.31x = 2,782.48 × 1,120.06
4. Step 4: Simplify right side
   2,016.31x = 3,116,532.44
5. Step 5: Solve for x
   x = 3,116,532.44/2,016.31
6. Step 6: Final answer
   x = 1,545.66