Finding the Fourth Proportional to 3,901.22, 5,851.38 and 979.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,901.22 : 5,851.38 = 979.31 : x
2. Step 2: Convert to fraction form
   3,901.22/5,851.38 = 979.31/x
3. Step 3: Cross multiply
   3,901.22x = 5,851.38 × 979.31
4. Step 4: Simplify right side
   3,901.22x = 5,730,285.69
5. Step 5: Solve for x
   x = 5,730,285.69/3,901.22
6. Step 6: Final answer
   x = 1,468.84