Finding the Fourth Proportional to 3,976.59, 5,487.89 and 2,298.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.59 : 5,487.89 = 2,298.23 : x
2. Step 2: Convert to fraction form
   3,976.59/5,487.89 = 2,298.23/x
3. Step 3: Cross multiply
   3,976.59x = 5,487.89 × 2,298.23
4. Step 4: Simplify right side
   3,976.59x = 12,612,394.50
5. Step 5: Solve for x
   x = 12,612,394.50/3,976.59
6. Step 6: Final answer
   x = 3,171.66