Finding the Fourth Proportional to 3,914.52, 5,866.56 and 2,065.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914.52 : 5,866.56 = 2,065.20 : x
2. Step 2: Convert to fraction form
   3,914.52/5,866.56 = 2,065.20/x
3. Step 3: Cross multiply
   3,914.52x = 5,866.56 × 2,065.20
4. Step 4: Simplify right side
   3,914.52x = 12,115,619.71
5. Step 5: Solve for x
   x = 12,115,619.71/3,914.52
6. Step 6: Final answer
   x = 3,095.05