Finding the Fourth Proportional to 3,915.73, 5,401.45 and 2,342.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,915.73 : 5,401.45 = 2,342.91 : x
2. Step 2: Convert to fraction form
   3,915.73/5,401.45 = 2,342.91/x
3. Step 3: Cross multiply
   3,915.73x = 5,401.45 × 2,342.91
4. Step 4: Simplify right side
   3,915.73x = 12,655,111.22
5. Step 5: Solve for x
   x = 12,655,111.22/3,915.73
6. Step 6: Final answer
   x = 3,231.87