Finding the Fourth Proportional to 2,164.71, 2,986.38 and 1,367.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164.71 : 2,986.38 = 1,367.75 : x
2. Step 2: Convert to fraction form
   2,164.71/2,986.38 = 1,367.75/x
3. Step 3: Cross multiply
   2,164.71x = 2,986.38 × 1,367.75
4. Step 4: Simplify right side
   2,164.71x = 4,084,606.31
5. Step 5: Solve for x
   x = 4,084,606.31/2,164.71
6. Step 6: Final answer
   x = 1,886.91