Finding the Fourth Proportional to 3,954.50, 5,457.69 and 2,298.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,954.50 : 5,457.69 = 2,298.50 : x
2. Step 2: Convert to fraction form
   3,954.50/5,457.69 = 2,298.50/x
3. Step 3: Cross multiply
   3,954.50x = 5,457.69 × 2,298.50
4. Step 4: Simplify right side
   3,954.50x = 12,544,500.47
5. Step 5: Solve for x
   x = 12,544,500.47/3,954.50
6. Step 6: Final answer
   x = 3,172.21