Finding the Fourth Proportional to 1,362.39, 1,879.52 and 1,066.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.39 : 1,879.52 = 1,066.47 : x
2. Step 2: Convert to fraction form
   1,362.39/1,879.52 = 1,066.47/x
3. Step 3: Cross multiply
   1,362.39x = 1,879.52 × 1,066.47
4. Step 4: Simplify right side
   1,362.39x = 2,004,446.36
5. Step 5: Solve for x
   x = 2,004,446.36/1,362.39
6. Step 6: Final answer
   x = 1,471.27