Finding the Fourth Proportional to 3,839.72, 5,751.47 and 1,761.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,839.72 : 5,751.47 = 1,761.46 : x
2. Step 2: Convert to fraction form
   3,839.72/5,751.47 = 1,761.46/x
3. Step 3: Cross multiply
   3,839.72x = 5,751.47 × 1,761.46
4. Step 4: Simplify right side
   3,839.72x = 10,130,974.37
5. Step 5: Solve for x
   x = 10,130,974.37/3,839.72
6. Step 6: Final answer
   x = 2,638.47