Finding the Fourth Proportional to 1,018.21, 1,404.98 and 576.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.21 : 1,404.98 = 576.02 : x
2. Step 2: Convert to fraction form
   1,018.21/1,404.98 = 576.02/x
3. Step 3: Cross multiply
   1,018.21x = 1,404.98 × 576.02
4. Step 4: Simplify right side
   1,018.21x = 809,300.13
5. Step 5: Solve for x
   x = 809,300.13/1,018.21
6. Step 6: Final answer
   x = 794.83