Finding the Fourth Proportional to 2,189.13, 3,020.94 and 1,194.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.13 : 3,020.94 = 1,194.45 : x
2. Step 2: Convert to fraction form
   2,189.13/3,020.94 = 1,194.45/x
3. Step 3: Cross multiply
   2,189.13x = 3,020.94 × 1,194.45
4. Step 4: Simplify right side
   2,189.13x = 3,608,361.78
5. Step 5: Solve for x
   x = 3,608,361.78/2,189.13
6. Step 6: Final answer
   x = 1,648.31