Finding the Fourth Proportional to 2,039.94, 2,815.04 and 1,155.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.94 : 2,815.04 = 1,155.74 : x
2. Step 2: Convert to fraction form
   2,039.94/2,815.04 = 1,155.74/x
3. Step 3: Cross multiply
   2,039.94x = 2,815.04 × 1,155.74
4. Step 4: Simplify right side
   2,039.94x = 3,253,434.48
5. Step 5: Solve for x
   x = 3,253,434.48/2,039.94
6. Step 6: Final answer
   x = 1,594.87