Finding the Fourth Proportional to 1,431.94, 1,974.81 and 966.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,431.94 : 1,974.81 = 966.82 : x
2. Step 2: Convert to fraction form
   1,431.94/1,974.81 = 966.82/x
3. Step 3: Cross multiply
   1,431.94x = 1,974.81 × 966.82
4. Step 4: Simplify right side
   1,431.94x = 1,909,285.80
5. Step 5: Solve for x
   x = 1,909,285.80/1,431.94
6. Step 6: Final answer
   x = 1,333.36