Finding the Fourth Proportional to 1,022.71, 1,533.71 and 957.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,022.71 : 1,533.71 = 957.10 : x
2. Step 2: Convert to fraction form
   1,022.71/1,533.71 = 957.10/x
3. Step 3: Cross multiply
   1,022.71x = 1,533.71 × 957.10
4. Step 4: Simplify right side
   1,022.71x = 1,467,913.84
5. Step 5: Solve for x
   x = 1,467,913.84/1,022.71
6. Step 6: Final answer
   x = 1,435.32