Finding the Fourth Proportional to 1,667.79, 2,301.62 and 969.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.79 : 2,301.62 = 969.57 : x
2. Step 2: Convert to fraction form
   1,667.79/2,301.62 = 969.57/x
3. Step 3: Cross multiply
   1,667.79x = 2,301.62 × 969.57
4. Step 4: Simplify right side
   1,667.79x = 2,231,576.86
5. Step 5: Solve for x
   x = 2,231,576.86/1,667.79
6. Step 6: Final answer
   x = 1,338.04