Finding the Fourth Proportional to 1,033.89, 1,426.59 and 635.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,033.89 : 1,426.59 = 635.46 : x
2. Step 2: Convert to fraction form
   1,033.89/1,426.59 = 635.46/x
3. Step 3: Cross multiply
   1,033.89x = 1,426.59 × 635.46
4. Step 4: Simplify right side
   1,033.89x = 906,540.88
5. Step 5: Solve for x
   x = 906,540.88/1,033.89
6. Step 6: Final answer
   x = 876.83