Finding the Fourth Proportional to 2,611.88, 3,915.28 and 967.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.88 : 3,915.28 = 967.96 : x
2. Step 2: Convert to fraction form
   2,611.88/3,915.28 = 967.96/x
3. Step 3: Cross multiply
   2,611.88x = 3,915.28 × 967.96
4. Step 4: Simplify right side
   2,611.88x = 3,789,834.43
5. Step 5: Solve for x
   x = 3,789,834.43/2,611.88
6. Step 6: Final answer
   x = 1,451.00