Finding the Fourth Proportional to 2,500.34, 3,450.49 and 1,381.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.34 : 3,450.49 = 1,381.30 : x
2. Step 2: Convert to fraction form
   2,500.34/3,450.49 = 1,381.30/x
3. Step 3: Cross multiply
   2,500.34x = 3,450.49 × 1,381.30
4. Step 4: Simplify right side
   2,500.34x = 4,766,161.84
5. Step 5: Solve for x
   x = 4,766,161.84/2,500.34
6. Step 6: Final answer
   x = 1,906.21