Finding the Fourth Proportional to 2,500.55, 3,450.74 and 1,381.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.55 : 3,450.74 = 1,381.54 : x
2. Step 2: Convert to fraction form
   2,500.55/3,450.74 = 1,381.54/x
3. Step 3: Cross multiply
   2,500.55x = 3,450.74 × 1,381.54
4. Step 4: Simplify right side
   2,500.55x = 4,767,335.34
5. Step 5: Solve for x
   x = 4,767,335.34/2,500.55
6. Step 6: Final answer
   x = 1,906.51