Finding the Fourth Proportional to 3,976.50, 5,487.75 and 2,298.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.50 : 5,487.75 = 2,298.12 : x
2. Step 2: Convert to fraction form
   3,976.50/5,487.75 = 2,298.12/x
3. Step 3: Cross multiply
   3,976.50x = 5,487.75 × 2,298.12
4. Step 4: Simplify right side
   3,976.50x = 12,611,508.03
5. Step 5: Solve for x
   x = 12,611,508.03/3,976.50
6. Step 6: Final answer
   x = 3,171.51