Finding the Fourth Proportional to 1,429.27, 1,971.29 and 957.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.27 : 1,971.29 = 957.02 : x
2. Step 2: Convert to fraction form
   1,429.27/1,971.29 = 957.02/x
3. Step 3: Cross multiply
   1,429.27x = 1,971.29 × 957.02
4. Step 4: Simplify right side
   1,429.27x = 1,886,556.49
5. Step 5: Solve for x
   x = 1,886,556.49/1,429.27
6. Step 6: Final answer
   x = 1,319.95