Finding the Fourth Proportional to 2,218.89, 3,058.38 and 1,588.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.89 : 3,058.38 = 1,588.42 : x
2. Step 2: Convert to fraction form
   2,218.89/3,058.38 = 1,588.42/x
3. Step 3: Cross multiply
   2,218.89x = 3,058.38 × 1,588.42
4. Step 4: Simplify right side
   2,218.89x = 4,858,004.55
5. Step 5: Solve for x
   x = 4,858,004.55/2,218.89
6. Step 6: Final answer
   x = 2,189.38