Finding the Fourth Proportional to 2,097.17, 3,144.38 and 1,172.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,097.17 : 3,144.38 = 1,172.83 : x
2. Step 2: Convert to fraction form
   2,097.17/3,144.38 = 1,172.83/x
3. Step 3: Cross multiply
   2,097.17x = 3,144.38 × 1,172.83
4. Step 4: Simplify right side
   2,097.17x = 3,687,809.47
5. Step 5: Solve for x
   x = 3,687,809.47/2,097.17
6. Step 6: Final answer
   x = 1,758.47