Finding the Fourth Proportional to 1,900.82, 2,851.25 and 668.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.82 : 2,851.25 = 668.23 : x
2. Step 2: Convert to fraction form
   1,900.82/2,851.25 = 668.23/x
3. Step 3: Cross multiply
   1,900.82x = 2,851.25 × 668.23
4. Step 4: Simplify right side
   1,900.82x = 1,905,280.32
5. Step 5: Solve for x
   x = 1,905,280.32/1,900.82
6. Step 6: Final answer
   x = 1,002.35