Finding the Fourth Proportional to 1,062.03, 1,466.31 and 664.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062.03 : 1,466.31 = 664.30 : x
2. Step 2: Convert to fraction form
   1,062.03/1,466.31 = 664.30/x
3. Step 3: Cross multiply
   1,062.03x = 1,466.31 × 664.30
4. Step 4: Simplify right side
   1,062.03x = 974,062.40
5. Step 5: Solve for x
   x = 974,062.40/1,062.03
6. Step 6: Final answer
   x = 917.17