Finding the Fourth Proportional to 1,166.32, 1,609.37 and 662.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,166.32 : 1,609.37 = 662.16 : x
2. Step 2: Convert to fraction form
   1,166.32/1,609.37 = 662.16/x
3. Step 3: Cross multiply
   1,166.32x = 1,609.37 × 662.16
4. Step 4: Simplify right side
   1,166.32x = 1,065,656.59
5. Step 5: Solve for x
   x = 1,065,656.59/1,166.32
6. Step 6: Final answer
   x = 913.69