Finding the Fourth Proportional to 2,938.96, 4,408.62 and 964.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,938.96 : 4,408.62 = 964.72 : x
2. Step 2: Convert to fraction form
   2,938.96/4,408.62 = 964.72/x
3. Step 3: Cross multiply
   2,938.96x = 4,408.62 × 964.72
4. Step 4: Simplify right side
   2,938.96x = 4,253,083.89
5. Step 5: Solve for x
   x = 4,253,083.89/2,938.96
6. Step 6: Final answer
   x = 1,447.14