Finding the Fourth Proportional to 2,789.29, 4,182.63 and 1,056.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.29 : 4,182.63 = 1,056.70 : x
2. Step 2: Convert to fraction form
   2,789.29/4,182.63 = 1,056.70/x
3. Step 3: Cross multiply
   2,789.29x = 4,182.63 × 1,056.70
4. Step 4: Simplify right side
   2,789.29x = 4,419,785.12
5. Step 5: Solve for x
   x = 4,419,785.12/2,789.29
6. Step 6: Final answer
   x = 1,584.56