Finding the Fourth Proportional to 1,451.83, 2,003.44 and 862.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,451.83 : 2,003.44 = 862.56 : x
2. Step 2: Convert to fraction form
   1,451.83/2,003.44 = 862.56/x
3. Step 3: Cross multiply
   1,451.83x = 2,003.44 × 862.56
4. Step 4: Simplify right side
   1,451.83x = 1,728,087.21
5. Step 5: Solve for x
   x = 1,728,087.21/1,451.83
6. Step 6: Final answer
   x = 1,190.28