Finding the Fourth Proportional to 2,611.89, 3,918.51 and 968.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.89 : 3,918.51 = 968.49 : x
2. Step 2: Convert to fraction form
   2,611.89/3,918.51 = 968.49/x
3. Step 3: Cross multiply
   2,611.89x = 3,918.51 × 968.49
4. Step 4: Simplify right side
   2,611.89x = 3,795,037.75
5. Step 5: Solve for x
   x = 3,795,037.75/2,611.89
6. Step 6: Final answer
   x = 1,452.99