Finding the Fourth Proportional to 1,188.24, 1,791.40 and 1,104.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,188.24 : 1,791.40 = 1,104.72 : x
2. Step 2: Convert to fraction form
   1,188.24/1,791.40 = 1,104.72/x
3. Step 3: Cross multiply
   1,188.24x = 1,791.40 × 1,104.72
4. Step 4: Simplify right side
   1,188.24x = 1,978,995.41
5. Step 5: Solve for x
   x = 1,978,995.41/1,188.24
6. Step 6: Final answer
   x = 1,665.48