Finding the Fourth Proportional to 2,189.04, 3,020.79 and 1,194.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.04 : 3,020.79 = 1,194.31 : x
2. Step 2: Convert to fraction form
   2,189.04/3,020.79 = 1,194.31/x
3. Step 3: Cross multiply
   2,189.04x = 3,020.79 × 1,194.31
4. Step 4: Simplify right side
   2,189.04x = 3,607,759.70
5. Step 5: Solve for x
   x = 3,607,759.70/2,189.04
6. Step 6: Final answer
   x = 1,648.10