Finding the Fourth Proportional to 1,033.50, 1,426.28 and 613.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,033.50 : 1,426.28 = 613.76 : x
2. Step 2: Convert to fraction form
   1,033.50/1,426.28 = 613.76/x
3. Step 3: Cross multiply
   1,033.50x = 1,426.28 × 613.76
4. Step 4: Simplify right side
   1,033.50x = 875,393.61
5. Step 5: Solve for x
   x = 875,393.61/1,033.50
6. Step 6: Final answer
   x = 847.02