Finding the Fourth Proportional to 2,097.74, 3,144.40 and 709.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,097.74 : 3,144.40 = 709.76 : x
2. Step 2: Convert to fraction form
   2,097.74/3,144.40 = 709.76/x
3. Step 3: Cross multiply
   2,097.74x = 3,144.40 × 709.76
4. Step 4: Simplify right side
   2,097.74x = 2,231,769.34
5. Step 5: Solve for x
   x = 2,231,769.34/2,097.74
6. Step 6: Final answer
   x = 1,063.89