Finding the Fourth Proportional to 2,018.56, 3,027.32 and 719.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.56 : 3,027.32 = 719.72 : x
2. Step 2: Convert to fraction form
   2,018.56/3,027.32 = 719.72/x
3. Step 3: Cross multiply
   2,018.56x = 3,027.32 × 719.72
4. Step 4: Simplify right side
   2,018.56x = 2,178,822.75
5. Step 5: Solve for x
   x = 2,178,822.75/2,018.56
6. Step 6: Final answer
   x = 1,079.39