Finding the Fourth Proportional to 2,541.57, 3,813.59 and 1,387.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,541.57 : 3,813.59 = 1,387.29 : x
2. Step 2: Convert to fraction form
   2,541.57/3,813.59 = 1,387.29/x
3. Step 3: Cross multiply
   2,541.57x = 3,813.59 × 1,387.29
4. Step 4: Simplify right side
   2,541.57x = 5,290,548.33
5. Step 5: Solve for x
   x = 5,290,548.33/2,541.57
6. Step 6: Final answer
   x = 2,081.61