Finding the Fourth Proportional to 1,253.41, 1,729.51 and 693.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,253.41 : 1,729.51 = 693.86 : x
2. Step 2: Convert to fraction form
   1,253.41/1,729.51 = 693.86/x
3. Step 3: Cross multiply
   1,253.41x = 1,729.51 × 693.86
4. Step 4: Simplify right side
   1,253.41x = 1,200,027.43
5. Step 5: Solve for x
   x = 1,200,027.43/1,253.41
6. Step 6: Final answer
   x = 957.41