Finding the Fourth Proportional to 1,033.50, 1,548.80 and 801.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,033.50 : 1,548.80 = 801.31 : x
2. Step 2: Convert to fraction form
   1,033.50/1,548.80 = 801.31/x
3. Step 3: Cross multiply
   1,033.50x = 1,548.80 × 801.31
4. Step 4: Simplify right side
   1,033.50x = 1,241,061.05
5. Step 5: Solve for x
   x = 1,241,061.05/1,033.50
6. Step 6: Final answer
   x = 1,200.83