Finding the Fourth Proportional to 2,189.39, 3,018.03 and 1,558.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.39 : 3,018.03 = 1,558.04 : x
2. Step 2: Convert to fraction form
   2,189.39/3,018.03 = 1,558.04/x
3. Step 3: Cross multiply
   2,189.39x = 3,018.03 × 1,558.04
4. Step 4: Simplify right side
   2,189.39x = 4,702,211.46
5. Step 5: Solve for x
   x = 4,702,211.46/2,189.39
6. Step 6: Final answer
   x = 2,147.73