Finding the Fourth Proportional to 1,456.68, 2,010.72 and 897.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.68 : 2,010.72 = 897.18 : x
2. Step 2: Convert to fraction form
   1,456.68/2,010.72 = 897.18/x
3. Step 3: Cross multiply
   1,456.68x = 2,010.72 × 897.18
4. Step 4: Simplify right side
   1,456.68x = 1,803,977.77
5. Step 5: Solve for x
   x = 1,803,977.77/1,456.68
6. Step 6: Final answer
   x = 1,238.42