Finding the Fourth Proportional to 3,927.31, 5,419.31 and 2,248.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,927.31 : 5,419.31 = 2,248.72 : x
2. Step 2: Convert to fraction form
   3,927.31/5,419.31 = 2,248.72/x
3. Step 3: Cross multiply
   3,927.31x = 5,419.31 × 2,248.72
4. Step 4: Simplify right side
   3,927.31x = 12,186,485.99
5. Step 5: Solve for x
   x = 12,186,485.99/3,927.31
6. Step 6: Final answer
   x = 3,103.01