Finding the Fourth Proportional to 2,164.22, 2,986.63 and 1,169.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164.22 : 2,986.63 = 1,169.50 : x
2. Step 2: Convert to fraction form
   2,164.22/2,986.63 = 1,169.50/x
3. Step 3: Cross multiply
   2,164.22x = 2,986.63 × 1,169.50
4. Step 4: Simplify right side
   2,164.22x = 3,492,853.39
5. Step 5: Solve for x
   x = 3,492,853.39/2,164.22
6. Step 6: Final answer
   x = 1,613.91