Finding the Fourth Proportional to 2,915.46, 4,370.15 and 1,271.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,915.46 : 4,370.15 = 1,271.57 : x
2. Step 2: Convert to fraction form
   2,915.46/4,370.15 = 1,271.57/x
3. Step 3: Cross multiply
   2,915.46x = 4,370.15 × 1,271.57
4. Step 4: Simplify right side
   2,915.46x = 5,556,932.96
5. Step 5: Solve for x
   x = 5,556,932.96/2,915.46
6. Step 6: Final answer
   x = 1,906.02