Finding the Fourth Proportional to 3,948.89, 5,910.91 and 2,709.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,948.89 : 5,910.91 = 2,709.05 : x
2. Step 2: Convert to fraction form
   3,948.89/5,910.91 = 2,709.05/x
3. Step 3: Cross multiply
   3,948.89x = 5,910.91 × 2,709.05
4. Step 4: Simplify right side
   3,948.89x = 16,012,914.41
5. Step 5: Solve for x
   x = 16,012,914.41/3,948.89
6. Step 6: Final answer
   x = 4,055.05