Finding the Fourth Proportional to 2,189.46, 3,021.40 and 1,194.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.46 : 3,021.40 = 1,194.74 : x
2. Step 2: Convert to fraction form
   2,189.46/3,021.40 = 1,194.74/x
3. Step 3: Cross multiply
   2,189.46x = 3,021.40 × 1,194.74
4. Step 4: Simplify right side
   2,189.46x = 3,609,802.15
5. Step 5: Solve for x
   x = 3,609,802.15/2,189.46
6. Step 6: Final answer
   x = 1,648.72