Finding the Fourth Proportional to 1,018.92, 1,406.12 and 576.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.92 : 1,406.12 = 576.82 : x
2. Step 2: Convert to fraction form
   1,018.92/1,406.12 = 576.82/x
3. Step 3: Cross multiply
   1,018.92x = 1,406.12 × 576.82
4. Step 4: Simplify right side
   1,018.92x = 811,077.01
5. Step 5: Solve for x
   x = 811,077.01/1,018.92
6. Step 6: Final answer
   x = 796.01