Finding the Fourth Proportional to 2,505.41, 3,456.84 and 1,620.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505.41 : 3,456.84 = 1,620.14 : x
2. Step 2: Convert to fraction form
   2,505.41/3,456.84 = 1,620.14/x
3. Step 3: Cross multiply
   2,505.41x = 3,456.84 × 1,620.14
4. Step 4: Simplify right side
   2,505.41x = 5,600,565.30
5. Step 5: Solve for x
   x = 5,600,565.30/2,505.41
6. Step 6: Final answer
   x = 2,235.39