Finding the Fourth Proportional to 2,017.72, 3,027.34 and 1,043.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.72 : 3,027.34 = 1,043.20 : x
2. Step 2: Convert to fraction form
   2,017.72/3,027.34 = 1,043.20/x
3. Step 3: Cross multiply
   2,017.72x = 3,027.34 × 1,043.20
4. Step 4: Simplify right side
   2,017.72x = 3,158,121.09
5. Step 5: Solve for x
   x = 3,158,121.09/2,017.72
6. Step 6: Final answer
   x = 1,565.19