Finding the Fourth Proportional to 2,018.32, 3,025.64 and 719.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.32 : 3,025.64 = 719.48 : x
2. Step 2: Convert to fraction form
   2,018.32/3,025.64 = 719.48/x
3. Step 3: Cross multiply
   2,018.32x = 3,025.64 × 719.48
4. Step 4: Simplify right side
   2,018.32x = 2,176,896.83
5. Step 5: Solve for x
   x = 2,176,896.83/2,018.32
6. Step 6: Final answer
   x = 1,078.57