Finding the Fourth Proportional to 1,191.46, 1,644.37 and 694.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191.46 : 1,644.37 = 694.12 : x
2. Step 2: Convert to fraction form
   1,191.46/1,644.37 = 694.12/x
3. Step 3: Cross multiply
   1,191.46x = 1,644.37 × 694.12
4. Step 4: Simplify right side
   1,191.46x = 1,141,381.88
5. Step 5: Solve for x
   x = 1,141,381.88/1,191.46
6. Step 6: Final answer
   x = 957.97