Finding the Fourth Proportional to 2,188.92, 3,020.72 and 1,194.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.92 : 3,020.72 = 1,194.20 : x
2. Step 2: Convert to fraction form
   2,188.92/3,020.72 = 1,194.20/x
3. Step 3: Cross multiply
   2,188.92x = 3,020.72 × 1,194.20
4. Step 4: Simplify right side
   2,188.92x = 3,607,354.36
5. Step 5: Solve for x
   x = 3,607,354.36/2,188.92
6. Step 6: Final answer
   x = 1,648.01