Finding the Fourth Proportional to 3,721.86, 5,135.94 and 2,043.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,721.86 : 5,135.94 = 2,043.18 : x
2. Step 2: Convert to fraction form
   3,721.86/5,135.94 = 2,043.18/x
3. Step 3: Cross multiply
   3,721.86x = 5,135.94 × 2,043.18
4. Step 4: Simplify right side
   3,721.86x = 10,493,649.89
5. Step 5: Solve for x
   x = 10,493,649.89/3,721.86
6. Step 6: Final answer
   x = 2,819.46