Finding the Fourth Proportional to 1,028.07, 1,418.76 and 562.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,028.07 : 1,418.76 = 562.31 : x
2. Step 2: Convert to fraction form
   1,028.07/1,418.76 = 562.31/x
3. Step 3: Cross multiply
   1,028.07x = 1,418.76 × 562.31
4. Step 4: Simplify right side
   1,028.07x = 797,782.94
5. Step 5: Solve for x
   x = 797,782.94/1,028.07
6. Step 6: Final answer
   x = 776.00