Finding the Fourth Proportional to 2,915.06, 4,371.81 and 1,271.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,915.06 : 4,371.81 = 1,271.23 : x
2. Step 2: Convert to fraction form
   2,915.06/4,371.81 = 1,271.23/x
3. Step 3: Cross multiply
   2,915.06x = 4,371.81 × 1,271.23
4. Step 4: Simplify right side
   2,915.06x = 5,557,560.33
5. Step 5: Solve for x
   x = 5,557,560.33/2,915.06
6. Step 6: Final answer
   x = 1,906.50