Finding the Fourth Proportional to 3,953.48, 5,456.56 and 2,276

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953.48 : 5,456.56 = 2,276 : x
2. Step 2: Convert to fraction form
   3,953.48/5,456.56 = 2,276/x
3. Step 3: Cross multiply
   3,953.48x = 5,456.56 × 2,276
4. Step 4: Simplify right side
   3,953.48x = 12,419,130.56
5. Step 5: Solve for x
   x = 12,419,130.56/3,953.48
6. Step 6: Final answer
   x = 3,141.32