Finding the Fourth Proportional to 3,976.85, 5,488.76 and 2,298.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.85 : 5,488.76 = 2,298.02 : x
2. Step 2: Convert to fraction form
   3,976.85/5,488.76 = 2,298.02/x
3. Step 3: Cross multiply
   3,976.85x = 5,488.76 × 2,298.02
4. Step 4: Simplify right side
   3,976.85x = 12,613,289.43
5. Step 5: Solve for x
   x = 12,613,289.43/3,976.85
6. Step 6: Final answer
   x = 3,171.68