Finding the Fourth Proportional to 1,665.51, 2,298.63 and 966.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.51 : 2,298.63 = 966.88 : x
2. Step 2: Convert to fraction form
   1,665.51/2,298.63 = 966.88/x
3. Step 3: Cross multiply
   1,665.51x = 2,298.63 × 966.88
4. Step 4: Simplify right side
   1,665.51x = 2,222,499.37
5. Step 5: Solve for x
   x = 2,222,499.37/1,665.51
6. Step 6: Final answer
   x = 1,334.43