Finding the Fourth Proportional to 2,164.56, 3,252.05 and 1,386.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164.56 : 3,252.05 = 1,386.08 : x
2. Step 2: Convert to fraction form
   2,164.56/3,252.05 = 1,386.08/x
3. Step 3: Cross multiply
   2,164.56x = 3,252.05 × 1,386.08
4. Step 4: Simplify right side
   2,164.56x = 4,507,578.27
5. Step 5: Solve for x
   x = 4,507,578.27/2,164.56
6. Step 6: Final answer
   x = 2,082.45