Finding the Fourth Proportional to 2,505.39, 3,761.91 and 2,120.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505.39 : 3,761.91 = 2,120.44 : x
2. Step 2: Convert to fraction form
   2,505.39/3,761.91 = 2,120.44/x
3. Step 3: Cross multiply
   2,505.39x = 3,761.91 × 2,120.44
4. Step 4: Simplify right side
   2,505.39x = 7,976,875.03
5. Step 5: Solve for x
   x = 7,976,875.03/2,505.39
6. Step 6: Final answer
   x = 3,183.89