Finding the Fourth Proportional to 1,452.12, 2,003.82 and 862.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,452.12 : 2,003.82 = 862.86 : x
2. Step 2: Convert to fraction form
   1,452.12/2,003.82 = 862.86/x
3. Step 3: Cross multiply
   1,452.12x = 2,003.82 × 862.86
4. Step 4: Simplify right side
   1,452.12x = 1,729,016.13
5. Step 5: Solve for x
   x = 1,729,016.13/1,452.12
6. Step 6: Final answer
   x = 1,190.68