Finding the Fourth Proportional to 1,665.52, 2,298.36 and 966.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.52 : 2,298.36 = 966.80 : x
2. Step 2: Convert to fraction form
   1,665.52/2,298.36 = 966.80/x
3. Step 3: Cross multiply
   1,665.52x = 2,298.36 × 966.80
4. Step 4: Simplify right side
   1,665.52x = 2,222,054.45
5. Step 5: Solve for x
   x = 2,222,054.45/1,665.52
6. Step 6: Final answer
   x = 1,334.15