Finding the Fourth Proportional to 1,642.82, 2,464.88 and 668.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,642.82 : 2,464.88 = 668.69 : x
2. Step 2: Convert to fraction form
   1,642.82/2,464.88 = 668.69/x
3. Step 3: Cross multiply
   1,642.82x = 2,464.88 × 668.69
4. Step 4: Simplify right side
   1,642.82x = 1,648,237.94
5. Step 5: Solve for x
   x = 1,648,237.94/1,642.82
6. Step 6: Final answer
   x = 1,003.30