Finding the Fourth Proportional to 3,709.40, 5,116.69 and 2,911.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,709.40 : 5,116.69 = 2,911.52 : x
2. Step 2: Convert to fraction form
   3,709.40/5,116.69 = 2,911.52/x
3. Step 3: Cross multiply
   3,709.40x = 5,116.69 × 2,911.52
4. Step 4: Simplify right side
   3,709.40x = 14,897,355.50
5. Step 5: Solve for x
   x = 14,897,355.50/3,709.40
6. Step 6: Final answer
   x = 4,016.11