Finding the Fourth Proportional to 1,010.25, 1,394.15 and 568.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010.25 : 1,394.15 = 568.15 : x
2. Step 2: Convert to fraction form
   1,010.25/1,394.15 = 568.15/x
3. Step 3: Cross multiply
   1,010.25x = 1,394.15 × 568.15
4. Step 4: Simplify right side
   1,010.25x = 792,080.00
5. Step 5: Solve for x
   x = 792,080.00/1,010.25
6. Step 6: Final answer
   x = 784.04