Finding the Fourth Proportional to 1,033.59, 1,426.28 and 613.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,033.59 : 1,426.28 = 613.86 : x
2. Step 2: Convert to fraction form
   1,033.59/1,426.28 = 613.86/x
3. Step 3: Cross multiply
   1,033.59x = 1,426.28 × 613.86
4. Step 4: Simplify right side
   1,033.59x = 875,533.17
5. Step 5: Solve for x
   x = 875,533.17/1,033.59
6. Step 6: Final answer
   x = 847.08