Finding the Fourth Proportional to 2,868.32, 4,302.72 and 1,018.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,868.32 : 4,302.72 = 1,018.72 : x
2. Step 2: Convert to fraction form
   2,868.32/4,302.72 = 1,018.72/x
3. Step 3: Cross multiply
   2,868.32x = 4,302.72 × 1,018.72
4. Step 4: Simplify right side
   2,868.32x = 4,383,266.92
5. Step 5: Solve for x
   x = 4,383,266.92/2,868.32
6. Step 6: Final answer
   x = 1,528.17