Finding the Fourth Proportional to 2,016.72, 2,783.34 and 1,132.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.72 : 2,783.34 = 1,132.57 : x
2. Step 2: Convert to fraction form
   2,016.72/2,783.34 = 1,132.57/x
3. Step 3: Cross multiply
   2,016.72x = 2,783.34 × 1,132.57
4. Step 4: Simplify right side
   2,016.72x = 3,152,320.43
5. Step 5: Solve for x
   x = 3,152,320.43/2,016.72
6. Step 6: Final answer
   x = 1,563.09