Finding the Fourth Proportional to 2,056.54, 3,079.32 and 1,080.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056.54 : 3,079.32 = 1,080.58 : x
2. Step 2: Convert to fraction form
   2,056.54/3,079.32 = 1,080.58/x
3. Step 3: Cross multiply
   2,056.54x = 3,079.32 × 1,080.58
4. Step 4: Simplify right side
   2,056.54x = 3,327,451.61
5. Step 5: Solve for x
   x = 3,327,451.61/2,056.54
6. Step 6: Final answer
   x = 1,617.99