Finding the Fourth Proportional to 1,166.43, 1,609.39 and 662.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,166.43 : 1,609.39 = 662.30 : x
2. Step 2: Convert to fraction form
   1,166.43/1,609.39 = 662.30/x
3. Step 3: Cross multiply
   1,166.43x = 1,609.39 × 662.30
4. Step 4: Simplify right side
   1,166.43x = 1,065,904.20
5. Step 5: Solve for x
   x = 1,065,904.20/1,166.43
6. Step 6: Final answer
   x = 913.82