Finding the Fourth Proportional to 1,062.66, 1,466.82 and 664.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062.66 : 1,466.82 = 664.50 : x
2. Step 2: Convert to fraction form
   1,062.66/1,466.82 = 664.50/x
3. Step 3: Cross multiply
   1,062.66x = 1,466.82 × 664.50
4. Step 4: Simplify right side
   1,062.66x = 974,701.89
5. Step 5: Solve for x
   x = 974,701.89/1,062.66
6. Step 6: Final answer
   x = 917.23