Finding the Fourth Proportional to 1,669.62, 2,304.27 and 961.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,669.62 : 2,304.27 = 961.56 : x
2. Step 2: Convert to fraction form
   1,669.62/2,304.27 = 961.56/x
3. Step 3: Cross multiply
   1,669.62x = 2,304.27 × 961.56
4. Step 4: Simplify right side
   1,669.62x = 2,215,693.86
5. Step 5: Solve for x
   x = 2,215,693.86/1,669.62
6. Step 6: Final answer
   x = 1,327.06