Finding the Fourth Proportional to 2,722.25, 3,758.19 and 1,915.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.25 : 3,758.19 = 1,915.94 : x
2. Step 2: Convert to fraction form
   2,722.25/3,758.19 = 1,915.94/x
3. Step 3: Cross multiply
   2,722.25x = 3,758.19 × 1,915.94
4. Step 4: Simplify right side
   2,722.25x = 7,200,466.55
5. Step 5: Solve for x
   x = 7,200,466.55/2,722.25
6. Step 6: Final answer
   x = 2,645.04