Finding the Fourth Proportional to 1,901.67, 2,850.69 and 668.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,901.67 : 2,850.69 = 668.27 : x
2. Step 2: Convert to fraction form
   1,901.67/2,850.69 = 668.27/x
3. Step 3: Cross multiply
   1,901.67x = 2,850.69 × 668.27
4. Step 4: Simplify right side
   1,901.67x = 1,905,030.61
5. Step 5: Solve for x
   x = 1,905,030.61/1,901.67
6. Step 6: Final answer
   x = 1,001.77