Finding the Fourth Proportional to 1,764.72, 2,435.31 and 957.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,764.72 : 2,435.31 = 957.18 : x
2. Step 2: Convert to fraction form
   1,764.72/2,435.31 = 957.18/x
3. Step 3: Cross multiply
   1,764.72x = 2,435.31 × 957.18
4. Step 4: Simplify right side
   1,764.72x = 2,331,030.03
5. Step 5: Solve for x
   x = 2,331,030.03/1,764.72
6. Step 6: Final answer
   x = 1,320.91