Finding the Fourth Proportional to 1,191.83, 1,644.88 and 694.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191.83 : 1,644.88 = 694.62 : x
2. Step 2: Convert to fraction form
   1,191.83/1,644.88 = 694.62/x
3. Step 3: Cross multiply
   1,191.83x = 1,644.88 × 694.62
4. Step 4: Simplify right side
   1,191.83x = 1,142,566.55
5. Step 5: Solve for x
   x = 1,142,566.55/1,191.83
6. Step 6: Final answer
   x = 958.67