Finding the Fourth Proportional to 1,033.89, 1,426.83 and 591.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,033.89 : 1,426.83 = 591.78 : x
2. Step 2: Convert to fraction form
   1,033.89/1,426.83 = 591.78/x
3. Step 3: Cross multiply
   1,033.89x = 1,426.83 × 591.78
4. Step 4: Simplify right side
   1,033.89x = 844,377.03
5. Step 5: Solve for x
   x = 844,377.03/1,033.89
6. Step 6: Final answer
   x = 816.70