Finding the Fourth Proportional to 3,817.83, 5,268.83 and 2,139.77

Step by Step Solution

1. Step 1: Write the proportion equation
   3,817.83 : 5,268.83 = 2,139.77 : x
2. Step 2: Convert to fraction form
   3,817.83/5,268.83 = 2,139.77/x
3. Step 3: Cross multiply
   3,817.83x = 5,268.83 × 2,139.77
4. Step 4: Simplify right side
   3,817.83x = 11,274,086.84
5. Step 5: Solve for x
   x = 11,274,086.84/3,817.83
6. Step 6: Final answer
   x = 2,953.01