Finding the Fourth Proportional to 1,119.36, 1,667.79 and 1,077.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,119.36 : 1,667.79 = 1,077.48 : x
2. Step 2: Convert to fraction form
   1,119.36/1,667.79 = 1,077.48/x
3. Step 3: Cross multiply
   1,119.36x = 1,667.79 × 1,077.48
4. Step 4: Simplify right side
   1,119.36x = 1,797,010.37
5. Step 5: Solve for x
   x = 1,797,010.37/1,119.36
6. Step 6: Final answer
   x = 1,605.39