Finding the Fourth Proportional to 3,976.13, 5,485.79 and 2,297.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.13 : 5,485.79 = 2,297.31 : x
2. Step 2: Convert to fraction form
   3,976.13/5,485.79 = 2,297.31/x
3. Step 3: Cross multiply
   3,976.13x = 5,485.79 × 2,297.31
4. Step 4: Simplify right side
   3,976.13x = 12,602,560.22
5. Step 5: Solve for x
   x = 12,602,560.22/3,976.13
6. Step 6: Final answer
   x = 3,169.55