Finding the Fourth Proportional to 1,441.56, 1,989.45 and 1,245.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,441.56 : 1,989.45 = 1,245.54 : x
2. Step 2: Convert to fraction form
   1,441.56/1,989.45 = 1,245.54/x
3. Step 3: Cross multiply
   1,441.56x = 1,989.45 × 1,245.54
4. Step 4: Simplify right side
   1,441.56x = 2,477,939.55
5. Step 5: Solve for x
   x = 2,477,939.55/1,441.56
6. Step 6: Final answer
   x = 1,718.93