Finding the Fourth Proportional to 3,954.47, 5,457.50 and 2,276.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,954.47 : 5,457.50 = 2,276.42 : x
2. Step 2: Convert to fraction form
   3,954.47/5,457.50 = 2,276.42/x
3. Step 3: Cross multiply
   3,954.47x = 5,457.50 × 2,276.42
4. Step 4: Simplify right side
   3,954.47x = 12,423,523.48
5. Step 5: Solve for x
   x = 12,423,523.48/3,954.47
6. Step 6: Final answer
   x = 3,141.64