Finding the Fourth Proportional to 1,456.03, 2,009.28 and 866.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.03 : 2,009.28 = 866.62 : x
2. Step 2: Convert to fraction form
   1,456.03/2,009.28 = 866.62/x
3. Step 3: Cross multiply
   1,456.03x = 2,009.28 × 866.62
4. Step 4: Simplify right side
   1,456.03x = 1,741,282.23
5. Step 5: Solve for x
   x = 1,741,282.23/1,456.03
6. Step 6: Final answer
   x = 1,195.91