Finding the Fourth Proportional to 3,909.05, 5,393.59 and 2,314.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,909.05 : 5,393.59 = 2,314.89 : x
2. Step 2: Convert to fraction form
   3,909.05/5,393.59 = 2,314.89/x
3. Step 3: Cross multiply
   3,909.05x = 5,393.59 × 2,314.89
4. Step 4: Simplify right side
   3,909.05x = 12,485,555.98
5. Step 5: Solve for x
   x = 12,485,555.98/3,909.05
6. Step 6: Final answer
   x = 3,194.01