Finding the Fourth Proportional to 1,192.07, 1,644.51 and 694.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,192.07 : 1,644.51 = 694.42 : x
2. Step 2: Convert to fraction form
   1,192.07/1,644.51 = 694.42/x
3. Step 3: Cross multiply
   1,192.07x = 1,644.51 × 694.42
4. Step 4: Simplify right side
   1,192.07x = 1,141,976.52
5. Step 5: Solve for x
   x = 1,141,976.52/1,192.07
6. Step 6: Final answer
   x = 957.98