Finding the Fourth Proportional to 1,055.41, 1,456.31 and 662.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055.41 : 1,456.31 = 662.56 : x
2. Step 2: Convert to fraction form
   1,055.41/1,456.31 = 662.56/x
3. Step 3: Cross multiply
   1,055.41x = 1,456.31 × 662.56
4. Step 4: Simplify right side
   1,055.41x = 964,882.16
5. Step 5: Solve for x
   x = 964,882.16/1,055.41
6. Step 6: Final answer
   x = 914.23