Finding the Fourth Proportional to 1,854.42, 2,559.59 and 1,155.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,854.42 : 2,559.59 = 1,155.38 : x
2. Step 2: Convert to fraction form
   1,854.42/2,559.59 = 1,155.38/x
3. Step 3: Cross multiply
   1,854.42x = 2,559.59 × 1,155.38
4. Step 4: Simplify right side
   1,854.42x = 2,957,299.09
5. Step 5: Solve for x
   x = 2,957,299.09/1,854.42
6. Step 6: Final answer
   x = 1,594.73