Finding the Fourth Proportional to 1,040.84, 1,436.32 and 568.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.84 : 1,436.32 = 568.72 : x
2. Step 2: Convert to fraction form
   1,040.84/1,436.32 = 568.72/x
3. Step 3: Cross multiply
   1,040.84x = 1,436.32 × 568.72
4. Step 4: Simplify right side
   1,040.84x = 816,863.91
5. Step 5: Solve for x
   x = 816,863.91/1,040.84
6. Step 6: Final answer
   x = 784.81