Finding the Fourth Proportional to 3,017.89, 4,160.33 and 2,118.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,017.89 : 4,160.33 = 2,118.89 : x
2. Step 2: Convert to fraction form
   3,017.89/4,160.33 = 2,118.89/x
3. Step 3: Cross multiply
   3,017.89x = 4,160.33 × 2,118.89
4. Step 4: Simplify right side
   3,017.89x = 8,815,286.74
5. Step 5: Solve for x
   x = 8,815,286.74/3,017.89
6. Step 6: Final answer
   x = 2,921.01