Finding the Fourth Proportional to 2,648.50, 3,964.82 and 1,605.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.50 : 3,964.82 = 1,605.32 : x
2. Step 2: Convert to fraction form
   2,648.50/3,964.82 = 1,605.32/x
3. Step 3: Cross multiply
   2,648.50x = 3,964.82 × 1,605.32
4. Step 4: Simplify right side
   2,648.50x = 6,364,791.86
5. Step 5: Solve for x
   x = 6,364,791.86/2,648.50
6. Step 6: Final answer
   x = 2,403.17