Finding the Fourth Proportional to 1,665.30, 2,298.22 and 957.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.30 : 2,298.22 = 957.37 : x
2. Step 2: Convert to fraction form
   1,665.30/2,298.22 = 957.37/x
3. Step 3: Cross multiply
   1,665.30x = 2,298.22 × 957.37
4. Step 4: Simplify right side
   1,665.30x = 2,200,248.44
5. Step 5: Solve for x
   x = 2,200,248.44/1,665.30
6. Step 6: Final answer
   x = 1,321.23