Finding the Fourth Proportional to 1,253.48, 1,729.76 and 693.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,253.48 : 1,729.76 = 693.93 : x
2. Step 2: Convert to fraction form
   1,253.48/1,729.76 = 693.93/x
3. Step 3: Cross multiply
   1,253.48x = 1,729.76 × 693.93
4. Step 4: Simplify right side
   1,253.48x = 1,200,335.37
5. Step 5: Solve for x
   x = 1,200,335.37/1,253.48
6. Step 6: Final answer
   x = 957.61