Finding the Fourth Proportional to 2,188.98, 3,020.84 and 1,194.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.98 : 3,020.84 = 1,194.27 : x
2. Step 2: Convert to fraction form
   2,188.98/3,020.84 = 1,194.27/x
3. Step 3: Cross multiply
   2,188.98x = 3,020.84 × 1,194.27
4. Step 4: Simplify right side
   2,188.98x = 3,607,692.62
5. Step 5: Solve for x
   x = 3,607,692.62/2,188.98
6. Step 6: Final answer
   x = 1,648.12