Finding the Fourth Proportional to 2,518.56, 3,778.56 and 1,056.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518.56 : 3,778.56 = 1,056.96 : x
2. Step 2: Convert to fraction form
   2,518.56/3,778.56 = 1,056.96/x
3. Step 3: Cross multiply
   2,518.56x = 3,778.56 × 1,056.96
4. Step 4: Simplify right side
   2,518.56x = 3,993,786.78
5. Step 5: Solve for x
   x = 3,993,786.78/2,518.56
6. Step 6: Final answer
   x = 1,585.74