Finding the Fourth Proportional to 2,097.68, 2,894.79 and 1,213.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,097.68 : 2,894.79 = 1,213.62 : x
2. Step 2: Convert to fraction form
   2,097.68/2,894.79 = 1,213.62/x
3. Step 3: Cross multiply
   2,097.68x = 2,894.79 × 1,213.62
4. Step 4: Simplify right side
   2,097.68x = 3,513,175.04
5. Step 5: Solve for x
   x = 3,513,175.04/2,097.68
6. Step 6: Final answer
   x = 1,674.79