Finding the Fourth Proportional to 2,609.46, 3,915.27 and 1,071.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.46 : 3,915.27 = 1,071.54 : x
2. Step 2: Convert to fraction form
   2,609.46/3,915.27 = 1,071.54/x
3. Step 3: Cross multiply
   2,609.46x = 3,915.27 × 1,071.54
4. Step 4: Simplify right side
   2,609.46x = 4,195,368.42
5. Step 5: Solve for x
   x = 4,195,368.42/2,609.46
6. Step 6: Final answer
   x = 1,607.75