Finding the Fourth Proportional to 2,667.37, 4,001.69 and 912.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.37 : 4,001.69 = 912.39 : x
2. Step 2: Convert to fraction form
   2,667.37/4,001.69 = 912.39/x
3. Step 3: Cross multiply
   2,667.37x = 4,001.69 × 912.39
4. Step 4: Simplify right side
   2,667.37x = 3,651,107.38
5. Step 5: Solve for x
   x = 3,651,107.38/2,667.37
6. Step 6: Final answer
   x = 1,368.80