Finding the Fourth Proportional to 2,458.80, 3,669.30 and 2,196.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,458.80 : 3,669.30 = 2,196.05 : x
2. Step 2: Convert to fraction form
   2,458.80/3,669.30 = 2,196.05/x
3. Step 3: Cross multiply
   2,458.80x = 3,669.30 × 2,196.05
4. Step 4: Simplify right side
   2,458.80x = 8,057,947.92
5. Step 5: Solve for x
   x = 8,057,947.92/2,458.80
6. Step 6: Final answer
   x = 3,277.19