Finding the Fourth Proportional to 1,452.27, 2,003.36 and 1,009.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,452.27 : 2,003.36 = 1,009.40 : x
2. Step 2: Convert to fraction form
   1,452.27/2,003.36 = 1,009.40/x
3. Step 3: Cross multiply
   1,452.27x = 2,003.36 × 1,009.40
4. Step 4: Simplify right side
   1,452.27x = 2,022,191.55
5. Step 5: Solve for x
   x = 2,022,191.55/1,452.27
6. Step 6: Final answer
   x = 1,392.43