Finding the Fourth Proportional to 1,133.25, 1,563.98 and 667.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,133.25 : 1,563.98 = 667.59 : x
2. Step 2: Convert to fraction form
   1,133.25/1,563.98 = 667.59/x
3. Step 3: Cross multiply
   1,133.25x = 1,563.98 × 667.59
4. Step 4: Simplify right side
   1,133.25x = 1,044,094.07
5. Step 5: Solve for x
   x = 1,044,094.07/1,133.25
6. Step 6: Final answer
   x = 921.33