Finding the Fourth Proportional to 2,500.45, 3,450.53 and 1,381.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.45 : 3,450.53 = 1,381.32 : x
2. Step 2: Convert to fraction form
   2,500.45/3,450.53 = 1,381.32/x
3. Step 3: Cross multiply
   2,500.45x = 3,450.53 × 1,381.32
4. Step 4: Simplify right side
   2,500.45x = 4,766,289.55
5. Step 5: Solve for x
   x = 4,766,289.55/2,500.45
6. Step 6: Final answer
   x = 1,906.17