Finding the Fourth Proportional to 2,645.60, 3,949.38 and 2,453.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.60 : 3,949.38 = 2,453.36 : x
2. Step 2: Convert to fraction form
   2,645.60/3,949.38 = 2,453.36/x
3. Step 3: Cross multiply
   2,645.60x = 3,949.38 × 2,453.36
4. Step 4: Simplify right side
   2,645.60x = 9,689,231.17
5. Step 5: Solve for x
   x = 9,689,231.17/2,645.60
6. Step 6: Final answer
   x = 3,662.40