Finding the Fourth Proportional to 1,022.03, 1,410.43 and 579.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,022.03 : 1,410.43 = 579.95 : x
2. Step 2: Convert to fraction form
   1,022.03/1,410.43 = 579.95/x
3. Step 3: Cross multiply
   1,022.03x = 1,410.43 × 579.95
4. Step 4: Simplify right side
   1,022.03x = 817,978.88
5. Step 5: Solve for x
   x = 817,978.88/1,022.03
6. Step 6: Final answer
   x = 800.35