Finding the Fourth Proportional to 1,667.03, 2,299.78 and 958.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.03 : 2,299.78 = 958.72 : x
2. Step 2: Convert to fraction form
   1,667.03/2,299.78 = 958.72/x
3. Step 3: Cross multiply
   1,667.03x = 2,299.78 × 958.72
4. Step 4: Simplify right side
   1,667.03x = 2,204,839.45
5. Step 5: Solve for x
   x = 2,204,839.45/1,667.03
6. Step 6: Final answer
   x = 1,322.61