Finding the Fourth Proportional to 1,028.17, 1,418.83 and 562.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,028.17 : 1,418.83 = 562.42 : x
2. Step 2: Convert to fraction form
   1,028.17/1,418.83 = 562.42/x
3. Step 3: Cross multiply
   1,028.17x = 1,418.83 × 562.42
4. Step 4: Simplify right side
   1,028.17x = 797,978.37
5. Step 5: Solve for x
   x = 797,978.37/1,028.17
6. Step 6: Final answer
   x = 776.12