Finding the Fourth Proportional to 4,081.55, 5,631.30 and 2,288.84

Step by Step Solution

1. Step 1: Write the proportion equation
   4,081.55 : 5,631.30 = 2,288.84 : x
2. Step 2: Convert to fraction form
   4,081.55/5,631.30 = 2,288.84/x
3. Step 3: Cross multiply
   4,081.55x = 5,631.30 × 2,288.84
4. Step 4: Simplify right side
   4,081.55x = 12,889,144.69
5. Step 5: Solve for x
   x = 12,889,144.69/4,081.55
6. Step 6: Final answer
   x = 3,157.90