Finding the Fourth Proportional to 1,033.72, 1,426.52 and 561.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,033.72 : 1,426.52 = 561.62 : x
2. Step 2: Convert to fraction form
   1,033.72/1,426.52 = 561.62/x
3. Step 3: Cross multiply
   1,033.72x = 1,426.52 × 561.62
4. Step 4: Simplify right side
   1,033.72x = 801,162.16
5. Step 5: Solve for x
   x = 801,162.16/1,033.72
6. Step 6: Final answer
   x = 775.03