Finding the Fourth Proportional to 2,505.33, 3,456.41 and 1,572.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505.33 : 3,456.41 = 1,572.21 : x
2. Step 2: Convert to fraction form
   2,505.33/3,456.41 = 1,572.21/x
3. Step 3: Cross multiply
   2,505.33x = 3,456.41 × 1,572.21
4. Step 4: Simplify right side
   2,505.33x = 5,434,194.51
5. Step 5: Solve for x
   x = 5,434,194.51/2,505.33
6. Step 6: Final answer
   x = 2,169.05