Finding the Fourth Proportional to 1,040.45, 1,435.83 and 568.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.45 : 1,435.83 = 568.33 : x
2. Step 2: Convert to fraction form
   1,040.45/1,435.83 = 568.33/x
3. Step 3: Cross multiply
   1,040.45x = 1,435.83 × 568.33
4. Step 4: Simplify right side
   1,040.45x = 816,030.82
5. Step 5: Solve for x
   x = 816,030.82/1,040.45
6. Step 6: Final answer
   x = 784.31