Finding the Fourth Proportional to 2,500.05, 3,448.85 and 1,616.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.05 : 3,448.85 = 1,616.61 : x
2. Step 2: Convert to fraction form
   2,500.05/3,448.85 = 1,616.61/x
3. Step 3: Cross multiply
   2,500.05x = 3,448.85 × 1,616.61
4. Step 4: Simplify right side
   2,500.05x = 5,575,437.32
5. Step 5: Solve for x
   x = 5,575,437.32/2,500.05
6. Step 6: Final answer
   x = 2,230.13