Finding the Fourth Proportional to 2,188.86, 3,020.60 and 1,194.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.86 : 3,020.60 = 1,194.18 : x
2. Step 2: Convert to fraction form
   2,188.86/3,020.60 = 1,194.18/x
3. Step 3: Cross multiply
   2,188.86x = 3,020.60 × 1,194.18
4. Step 4: Simplify right side
   2,188.86x = 3,607,134.14
5. Step 5: Solve for x
   x = 3,607,134.14/2,188.86
6. Step 6: Final answer
   x = 1,647.95