Finding the Fourth Proportional to 2,125.82, 3,184.48 and 1,661.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,125.82 : 3,184.48 = 1,661.29 : x
2. Step 2: Convert to fraction form
   2,125.82/3,184.48 = 1,661.29/x
3. Step 3: Cross multiply
   2,125.82x = 3,184.48 × 1,661.29
4. Step 4: Simplify right side
   2,125.82x = 5,290,338.89
5. Step 5: Solve for x
   x = 5,290,338.89/2,125.82
6. Step 6: Final answer
   x = 2,488.61