Finding the Fourth Proportional to 1,643.04, 2,464.59 and 668.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,643.04 : 2,464.59 = 668.94 : x
2. Step 2: Convert to fraction form
   1,643.04/2,464.59 = 668.94/x
3. Step 3: Cross multiply
   1,643.04x = 2,464.59 × 668.94
4. Step 4: Simplify right side
   1,643.04x = 1,648,662.83
5. Step 5: Solve for x
   x = 1,648,662.83/1,643.04
6. Step 6: Final answer
   x = 1,003.42