Finding the Fourth Proportional to 1,033.57, 1,426.23 and 613.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,033.57 : 1,426.23 = 613.81 : x
2. Step 2: Convert to fraction form
   1,033.57/1,426.23 = 613.81/x
3. Step 3: Cross multiply
   1,033.57x = 1,426.23 × 613.81
4. Step 4: Simplify right side
   1,033.57x = 875,434.24
5. Step 5: Solve for x
   x = 875,434.24/1,033.57
6. Step 6: Final answer
   x = 847.00