Finding the Fourth Proportional to 2,056.56, 3,081.16 and 1,079.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056.56 : 3,081.16 = 1,079.68 : x
2. Step 2: Convert to fraction form
   2,056.56/3,081.16 = 1,079.68/x
3. Step 3: Cross multiply
   2,056.56x = 3,081.16 × 1,079.68
4. Step 4: Simplify right side
   2,056.56x = 3,326,666.83
5. Step 5: Solve for x
   x = 3,326,666.83/2,056.56
6. Step 6: Final answer
   x = 1,617.59