Finding the Fourth Proportional to 2,164.66, 2,987.22 and 1,169.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164.66 : 2,987.22 = 1,169.94 : x
2. Step 2: Convert to fraction form
   2,164.66/2,987.22 = 1,169.94/x
3. Step 3: Cross multiply
   2,164.66x = 2,987.22 × 1,169.94
4. Step 4: Simplify right side
   2,164.66x = 3,494,856.63
5. Step 5: Solve for x
   x = 3,494,856.63/2,164.66
6. Step 6: Final answer
   x = 1,614.50