Finding the Fourth Proportional to 1,191.41, 1,644.15 and 694.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191.41 : 1,644.15 = 694.07 : x
2. Step 2: Convert to fraction form
   1,191.41/1,644.15 = 694.07/x
3. Step 3: Cross multiply
   1,191.41x = 1,644.15 × 694.07
4. Step 4: Simplify right side
   1,191.41x = 1,141,151.83
5. Step 5: Solve for x
   x = 1,141,151.83/1,191.41
6. Step 6: Final answer
   x = 957.82