Finding the Fourth Proportional to 1,191.93, 1,644.84 and 694.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191.93 : 1,644.84 = 694.59 : x
2. Step 2: Convert to fraction form
   1,191.93/1,644.84 = 694.59/x
3. Step 3: Cross multiply
   1,191.93x = 1,644.84 × 694.59
4. Step 4: Simplify right side
   1,191.93x = 1,142,483.25
5. Step 5: Solve for x
   x = 1,142,483.25/1,191.93
6. Step 6: Final answer
   x = 958.52