Finding the Fourth Proportional to 2,234.55, 3,081.81 and 1,438.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,234.55 : 3,081.81 = 1,438.02 : x
2. Step 2: Convert to fraction form
   2,234.55/3,081.81 = 1,438.02/x
3. Step 3: Cross multiply
   2,234.55x = 3,081.81 × 1,438.02
4. Step 4: Simplify right side
   2,234.55x = 4,431,704.42
5. Step 5: Solve for x
   x = 4,431,704.42/2,234.55
6. Step 6: Final answer
   x = 1,983.26