Finding the Fourth Proportional to 3,946.18, 5,915.31 and 1,347.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,946.18 : 5,915.31 = 1,347.34 : x
2. Step 2: Convert to fraction form
   3,946.18/5,915.31 = 1,347.34/x
3. Step 3: Cross multiply
   3,946.18x = 5,915.31 × 1,347.34
4. Step 4: Simplify right side
   3,946.18x = 7,969,933.78
5. Step 5: Solve for x
   x = 7,969,933.78/3,946.18
6. Step 6: Final answer
   x = 2,019.66