Finding the Fourth Proportional to 1,033.45, 1,426.15 and 561.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,033.45 : 1,426.15 = 561.36 : x
2. Step 2: Convert to fraction form
   1,033.45/1,426.15 = 561.36/x
3. Step 3: Cross multiply
   1,033.45x = 1,426.15 × 561.36
4. Step 4: Simplify right side
   1,033.45x = 800,583.56
5. Step 5: Solve for x
   x = 800,583.56/1,033.45
6. Step 6: Final answer
   x = 774.67