Finding the Fourth Proportional to 1,960.56, 2,705.58 and 1,076.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,960.56 : 2,705.58 = 1,076.42 : x
2. Step 2: Convert to fraction form
   1,960.56/2,705.58 = 1,076.42/x
3. Step 3: Cross multiply
   1,960.56x = 2,705.58 × 1,076.42
4. Step 4: Simplify right side
   1,960.56x = 2,912,340.42
5. Step 5: Solve for x
   x = 2,912,340.42/1,960.56
6. Step 6: Final answer
   x = 1,485.46