Finding the Fourth Proportional to 3,802.86, 5,247.77 and 2,124.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,802.86 : 5,247.77 = 2,124.27 : x
2. Step 2: Convert to fraction form
   3,802.86/5,247.77 = 2,124.27/x
3. Step 3: Cross multiply
   3,802.86x = 5,247.77 × 2,124.27
4. Step 4: Simplify right side
   3,802.86x = 11,147,669.76
5. Step 5: Solve for x
   x = 11,147,669.76/3,802.86
6. Step 6: Final answer
   x = 2,931.39