Finding the Fourth Proportional to 1,456.47, 2,009.88 and 866.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.47 : 2,009.88 = 866.70 : x
2. Step 2: Convert to fraction form
   1,456.47/2,009.88 = 866.70/x
3. Step 3: Cross multiply
   1,456.47x = 2,009.88 × 866.70
4. Step 4: Simplify right side
   1,456.47x = 1,741,963.00
5. Step 5: Solve for x
   x = 1,741,963.00/1,456.47
6. Step 6: Final answer
   x = 1,196.02