Finding the Fourth Proportional to 1,764.72, 2,645.82 and 668.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,764.72 : 2,645.82 = 668.16 : x
2. Step 2: Convert to fraction form
   1,764.72/2,645.82 = 668.16/x
3. Step 3: Cross multiply
   1,764.72x = 2,645.82 × 668.16
4. Step 4: Simplify right side
   1,764.72x = 1,767,831.09
5. Step 5: Solve for x
   x = 1,767,831.09/1,764.72
6. Step 6: Final answer
   x = 1,001.76