Finding the Fourth Proportional to 2,074.32, 3,107.23 and 1,661.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.32 : 3,107.23 = 1,661.22 : x
2. Step 2: Convert to fraction form
   2,074.32/3,107.23 = 1,661.22/x
3. Step 3: Cross multiply
   2,074.32x = 3,107.23 × 1,661.22
4. Step 4: Simplify right side
   2,074.32x = 5,161,788.47
5. Step 5: Solve for x
   x = 5,161,788.47/2,074.32
6. Step 6: Final answer
   x = 2,488.42