Finding the Fourth Proportional to 2,918.15, 4,375.46 and 1,163.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,918.15 : 4,375.46 = 1,163.42 : x
2. Step 2: Convert to fraction form
   2,918.15/4,375.46 = 1,163.42/x
3. Step 3: Cross multiply
   2,918.15x = 4,375.46 × 1,163.42
4. Step 4: Simplify right side
   2,918.15x = 5,090,504.15
5. Step 5: Solve for x
   x = 5,090,504.15/2,918.15
6. Step 6: Final answer
   x = 1,744.43