Finding the Fourth Proportional to 2,918.18, 4,374.57 and 1,164.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,918.18 : 4,374.57 = 1,164.31 : x
2. Step 2: Convert to fraction form
   2,918.18/4,374.57 = 1,164.31/x
3. Step 3: Cross multiply
   2,918.18x = 4,374.57 × 1,164.31
4. Step 4: Simplify right side
   2,918.18x = 5,093,355.60
5. Step 5: Solve for x
   x = 5,093,355.60/2,918.18
6. Step 6: Final answer
   x = 1,745.39