Finding the Fourth Proportional to 3,761.25, 5,190.53 and 2,105.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,761.25 : 5,190.53 = 2,105.25 : x
2. Step 2: Convert to fraction form
   3,761.25/5,190.53 = 2,105.25/x
3. Step 3: Cross multiply
   3,761.25x = 5,190.53 × 2,105.25
4. Step 4: Simplify right side
   3,761.25x = 10,927,352.76
5. Step 5: Solve for x
   x = 10,927,352.76/3,761.25
6. Step 6: Final answer
   x = 2,905.25