Finding the Fourth Proportional to 1,028.06, 1,418.74 and 562.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,028.06 : 1,418.74 = 562.31 : x
2. Step 2: Convert to fraction form
   1,028.06/1,418.74 = 562.31/x
3. Step 3: Cross multiply
   1,028.06x = 1,418.74 × 562.31
4. Step 4: Simplify right side
   1,028.06x = 797,773.83
5. Step 5: Solve for x
   x = 797,773.83/1,028.06
6. Step 6: Final answer
   x = 776.00