Finding the Fourth Proportional to 1,253.38, 1,729.60 and 693.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,253.38 : 1,729.60 = 693.83 : x
2. Step 2: Convert to fraction form
   1,253.38/1,729.60 = 693.83/x
3. Step 3: Cross multiply
   1,253.38x = 1,729.60 × 693.83
4. Step 4: Simplify right side
   1,253.38x = 1,200,048.37
5. Step 5: Solve for x
   x = 1,200,048.37/1,253.38
6. Step 6: Final answer
   x = 957.45