Finding the Fourth Proportional to 2,123.97, 3,186.68 and 1,097.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.97 : 3,186.68 = 1,097.25 : x
2. Step 2: Convert to fraction form
   2,123.97/3,186.68 = 1,097.25/x
3. Step 3: Cross multiply
   2,123.97x = 3,186.68 × 1,097.25
4. Step 4: Simplify right side
   2,123.97x = 3,496,579.14
5. Step 5: Solve for x
   x = 3,496,579.14/2,123.97
6. Step 6: Final answer
   x = 1,646.25