Finding the Fourth Proportional to 1,656.32, 2,285.56 and 957.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,656.32 : 2,285.56 = 957.68 : x
2. Step 2: Convert to fraction form
   1,656.32/2,285.56 = 957.68/x
3. Step 3: Cross multiply
   1,656.32x = 2,285.56 × 957.68
4. Step 4: Simplify right side
   1,656.32x = 2,188,835.10
5. Step 5: Solve for x
   x = 2,188,835.10/1,656.32
6. Step 6: Final answer
   x = 1,321.50