Finding the Fourth Proportional to 2,611.98, 3,918.31 and 968.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.98 : 3,918.31 = 968.56 : x
2. Step 2: Convert to fraction form
   2,611.98/3,918.31 = 968.56/x
3. Step 3: Cross multiply
   2,611.98x = 3,918.31 × 968.56
4. Step 4: Simplify right side
   2,611.98x = 3,795,106.12
5. Step 5: Solve for x
   x = 3,795,106.12/2,611.98
6. Step 6: Final answer
   x = 1,452.96