Finding the Fourth Proportional to 2,481.98, 3,721.34 and 1,386.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,481.98 : 3,721.34 = 1,386.46 : x
2. Step 2: Convert to fraction form
   2,481.98/3,721.34 = 1,386.46/x
3. Step 3: Cross multiply
   2,481.98x = 3,721.34 × 1,386.46
4. Step 4: Simplify right side
   2,481.98x = 5,159,489.06
5. Step 5: Solve for x
   x = 5,159,489.06/2,481.98
6. Step 6: Final answer
   x = 2,078.78