Finding the Fourth Proportional to 1,452.61, 2,003.94 and 862.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,452.61 : 2,003.94 = 862.81 : x
2. Step 2: Convert to fraction form
   1,452.61/2,003.94 = 862.81/x
3. Step 3: Cross multiply
   1,452.61x = 2,003.94 × 862.81
4. Step 4: Simplify right side
   1,452.61x = 1,729,019.47
5. Step 5: Solve for x
   x = 1,729,019.47/1,452.61
6. Step 6: Final answer
   x = 1,190.28