Finding the Fourth Proportional to 3,945.60, 5,444.69 and 2,453.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945.60 : 5,444.69 = 2,453.09 : x
2. Step 2: Convert to fraction form
   3,945.60/5,444.69 = 2,453.09/x
3. Step 3: Cross multiply
   3,945.60x = 5,444.69 × 2,453.09
4. Step 4: Simplify right side
   3,945.60x = 13,356,275.10
5. Step 5: Solve for x
   x = 13,356,275.10/3,945.60
6. Step 6: Final answer
   x = 3,385.11