Finding the Fourth Proportional to 1,040.36, 1,435.61 and 568.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.36 : 1,435.61 = 568.22 : x
2. Step 2: Convert to fraction form
   1,040.36/1,435.61 = 568.22/x
3. Step 3: Cross multiply
   1,040.36x = 1,435.61 × 568.22
4. Step 4: Simplify right side
   1,040.36x = 815,736.56
5. Step 5: Solve for x
   x = 815,736.56/1,040.36
6. Step 6: Final answer
   x = 784.09