Finding the Fourth Proportional to 2,500.12, 3,450.37 and 1,438.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.12 : 3,450.37 = 1,438.22 : x
2. Step 2: Convert to fraction form
   2,500.12/3,450.37 = 1,438.22/x
3. Step 3: Cross multiply
   2,500.12x = 3,450.37 × 1,438.22
4. Step 4: Simplify right side
   2,500.12x = 4,962,396.17
5. Step 5: Solve for x
   x = 4,962,396.17/2,500.12
6. Step 6: Final answer
   x = 1,984.87