Finding the Fourth Proportional to 4,031.15, 5,563.31 and 2,238.78

Step by Step Solution

1. Step 1: Write the proportion equation
   4,031.15 : 5,563.31 = 2,238.78 : x
2. Step 2: Convert to fraction form
   4,031.15/5,563.31 = 2,238.78/x
3. Step 3: Cross multiply
   4,031.15x = 5,563.31 × 2,238.78
4. Step 4: Simplify right side
   4,031.15x = 12,455,036.83
5. Step 5: Solve for x
   x = 12,455,036.83/4,031.15
6. Step 6: Final answer
   x = 3,089.70