Finding the Fourth Proportional to 1,033.82, 1,426.69 and 561.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,033.82 : 1,426.69 = 561.72 : x
2. Step 2: Convert to fraction form
   1,033.82/1,426.69 = 561.72/x
3. Step 3: Cross multiply
   1,033.82x = 1,426.69 × 561.72
4. Step 4: Simplify right side
   1,033.82x = 801,398.90
5. Step 5: Solve for x
   x = 801,398.90/1,033.82
6. Step 6: Final answer
   x = 775.18