Finding the Fourth Proportional to 1,233.98, 1,851.27 and 869.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,233.98 : 1,851.27 = 869.48 : x
2. Step 2: Convert to fraction form
   1,233.98/1,851.27 = 869.48/x
3. Step 3: Cross multiply
   1,233.98x = 1,851.27 × 869.48
4. Step 4: Simplify right side
   1,233.98x = 1,609,632.98
5. Step 5: Solve for x
   x = 1,609,632.98/1,233.98
6. Step 6: Final answer
   x = 1,304.43