Finding the Fourth Proportional to 1,667.23, 2,300.70 and 958.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.23 : 2,300.70 = 958.58 : x
2. Step 2: Convert to fraction form
   1,667.23/2,300.70 = 958.58/x
3. Step 3: Cross multiply
   1,667.23x = 2,300.70 × 958.58
4. Step 4: Simplify right side
   1,667.23x = 2,205,405.01
5. Step 5: Solve for x
   x = 2,205,405.01/1,667.23
6. Step 6: Final answer
   x = 1,322.80