Finding the Fourth Proportional to 1,353.38, 1,866.71 and 1,308.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353.38 : 1,866.71 = 1,308.22 : x
2. Step 2: Convert to fraction form
   1,353.38/1,866.71 = 1,308.22/x
3. Step 3: Cross multiply
   1,353.38x = 1,866.71 × 1,308.22
4. Step 4: Simplify right side
   1,353.38x = 2,442,067.36
5. Step 5: Solve for x
   x = 2,442,067.36/1,353.38
6. Step 6: Final answer
   x = 1,804.42