Finding the Fourth Proportional to 2,299.69, 3,175.61 and 1,709.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,299.69 : 3,175.61 = 1,709.20 : x
2. Step 2: Convert to fraction form
   2,299.69/3,175.61 = 1,709.20/x
3. Step 3: Cross multiply
   2,299.69x = 3,175.61 × 1,709.20
4. Step 4: Simplify right side
   2,299.69x = 5,427,748.04
5. Step 5: Solve for x
   x = 5,427,748.04/2,299.69
6. Step 6: Final answer
   x = 2,360.21