Finding the Fourth Proportional to 2,131.49, 3,198.11 and 1,697.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.49 : 3,198.11 = 1,697.33 : x
2. Step 2: Convert to fraction form
   2,131.49/3,198.11 = 1,697.33/x
3. Step 3: Cross multiply
   2,131.49x = 3,198.11 × 1,697.33
4. Step 4: Simplify right side
   2,131.49x = 5,428,247.55
5. Step 5: Solve for x
   x = 5,428,247.55/2,131.49
6. Step 6: Final answer
   x = 2,546.69