Finding the Fourth Proportional to 1,457.25, 2,009.69 and 959.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,457.25 : 2,009.69 = 959.71 : x
2. Step 2: Convert to fraction form
   1,457.25/2,009.69 = 959.71/x
3. Step 3: Cross multiply
   1,457.25x = 2,009.69 × 959.71
4. Step 4: Simplify right side
   1,457.25x = 1,928,719.59
5. Step 5: Solve for x
   x = 1,928,719.59/1,457.25
6. Step 6: Final answer
   x = 1,323.53