Finding the Fourth Proportional to 1,853.82, 2,557.85 and 1,155.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,853.82 : 2,557.85 = 1,155.33 : x
2. Step 2: Convert to fraction form
   1,853.82/2,557.85 = 1,155.33/x
3. Step 3: Cross multiply
   1,853.82x = 2,557.85 × 1,155.33
4. Step 4: Simplify right side
   1,853.82x = 2,955,155.06
5. Step 5: Solve for x
   x = 2,955,155.06/1,853.82
6. Step 6: Final answer
   x = 1,594.09