Finding the Fourth Proportional to 1,408.71, 1,943.73 and 966.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.71 : 1,943.73 = 966.45 : x
2. Step 2: Convert to fraction form
   1,408.71/1,943.73 = 966.45/x
3. Step 3: Cross multiply
   1,408.71x = 1,943.73 × 966.45
4. Step 4: Simplify right side
   1,408.71x = 1,878,517.86
5. Step 5: Solve for x
   x = 1,878,517.86/1,408.71
6. Step 6: Final answer
   x = 1,333.50