Finding the Fourth Proportional to 1,047.65, 1,570.46 and 957.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.65 : 1,570.46 = 957.42 : x
2. Step 2: Convert to fraction form
   1,047.65/1,570.46 = 957.42/x
3. Step 3: Cross multiply
   1,047.65x = 1,570.46 × 957.42
4. Step 4: Simplify right side
   1,047.65x = 1,503,585.03
5. Step 5: Solve for x
   x = 1,503,585.03/1,047.65
6. Step 6: Final answer
   x = 1,435.20