Finding the Fourth Proportional to 2,162.54, 3,245.02 and 1,645.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.54 : 3,245.02 = 1,645.76 : x
2. Step 2: Convert to fraction form
   2,162.54/3,245.02 = 1,645.76/x
3. Step 3: Cross multiply
   2,162.54x = 3,245.02 × 1,645.76
4. Step 4: Simplify right side
   2,162.54x = 5,340,528.11
5. Step 5: Solve for x
   x = 5,340,528.11/2,162.54
6. Step 6: Final answer
   x = 2,469.56