Finding the Fourth Proportional to 2,607.89, 3,911.46 and 964.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.89 : 3,911.46 = 964.16 : x
2. Step 2: Convert to fraction form
   2,607.89/3,911.46 = 964.16/x
3. Step 3: Cross multiply
   2,607.89x = 3,911.46 × 964.16
4. Step 4: Simplify right side
   2,607.89x = 3,771,253.72
5. Step 5: Solve for x
   x = 3,771,253.72/2,607.89
6. Step 6: Final answer
   x = 1,446.10