Finding the Fourth Proportional to 1,456.72, 2,009.85 and 897.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.72 : 2,009.85 = 897.28 : x
2. Step 2: Convert to fraction form
   1,456.72/2,009.85 = 897.28/x
3. Step 3: Cross multiply
   1,456.72x = 2,009.85 × 897.28
4. Step 4: Simplify right side
   1,456.72x = 1,803,389.82
5. Step 5: Solve for x
   x = 1,803,389.82/1,456.72
6. Step 6: Final answer
   x = 1,237.98