Finding the Fourth Proportional to 3,817.86, 5,724.09 and 1,868.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,817.86 : 5,724.09 = 1,868.82 : x
2. Step 2: Convert to fraction form
   3,817.86/5,724.09 = 1,868.82/x
3. Step 3: Cross multiply
   3,817.86x = 5,724.09 × 1,868.82
4. Step 4: Simplify right side
   3,817.86x = 10,697,293.87
5. Step 5: Solve for x
   x = 10,697,293.87/3,817.86
6. Step 6: Final answer
   x = 2,801.91