Finding the Fourth Proportional to 1,661.62, 2,488.32 and 966.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,661.62 : 2,488.32 = 966.18 : x
2. Step 2: Convert to fraction form
   1,661.62/2,488.32 = 966.18/x
3. Step 3: Cross multiply
   1,661.62x = 2,488.32 × 966.18
4. Step 4: Simplify right side
   1,661.62x = 2,404,165.02
5. Step 5: Solve for x
   x = 2,404,165.02/1,661.62
6. Step 6: Final answer
   x = 1,446.88