Finding the Fourth Proportional to 1,667.72, 2,301.60 and 969.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.72 : 2,301.60 = 969.32 : x
2. Step 2: Convert to fraction form
   1,667.72/2,301.60 = 969.32/x
3. Step 3: Cross multiply
   1,667.72x = 2,301.60 × 969.32
4. Step 4: Simplify right side
   1,667.72x = 2,230,986.91
5. Step 5: Solve for x
   x = 2,230,986.91/1,667.72
6. Step 6: Final answer
   x = 1,337.75