Finding the Fourth Proportional to 3,911.04, 5,872.42 and 3,385.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,911.04 : 5,872.42 = 3,385.58 : x
2. Step 2: Convert to fraction form
   3,911.04/5,872.42 = 3,385.58/x
3. Step 3: Cross multiply
   3,911.04x = 5,872.42 × 3,385.58
4. Step 4: Simplify right side
   3,911.04x = 19,881,509.88
5. Step 5: Solve for x
   x = 19,881,509.88/3,911.04
6. Step 6: Final answer
   x = 5,083.43