Finding the Fourth Proportional to 2,648.82, 3,971.31 and 1,333.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.82 : 3,971.31 = 1,333.38 : x
2. Step 2: Convert to fraction form
   2,648.82/3,971.31 = 1,333.38/x
3. Step 3: Cross multiply
   2,648.82x = 3,971.31 × 1,333.38
4. Step 4: Simplify right side
   2,648.82x = 5,295,265.33
5. Step 5: Solve for x
   x = 5,295,265.33/2,648.82
6. Step 6: Final answer
   x = 1,999.10