Finding the Fourth Proportional to 1,033.71, 1,426.23 and 613.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,033.71 : 1,426.23 = 613.86 : x
2. Step 2: Convert to fraction form
   1,033.71/1,426.23 = 613.86/x
3. Step 3: Cross multiply
   1,033.71x = 1,426.23 × 613.86
4. Step 4: Simplify right side
   1,033.71x = 875,505.55
5. Step 5: Solve for x
   x = 875,505.55/1,033.71
6. Step 6: Final answer
   x = 846.95