Finding the Fourth Proportional to 1,665.86, 2,298.76 and 957.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.86 : 2,298.76 = 957.67 : x
2. Step 2: Convert to fraction form
   1,665.86/2,298.76 = 957.67/x
3. Step 3: Cross multiply
   1,665.86x = 2,298.76 × 957.67
4. Step 4: Simplify right side
   1,665.86x = 2,201,442.00
5. Step 5: Solve for x
   x = 2,201,442.00/1,665.86
6. Step 6: Final answer
   x = 1,321.50