Finding the Fourth Proportional to 3,784.51, 5,222.23 and 2,105.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,784.51 : 5,222.23 = 2,105.92 : x
2. Step 2: Convert to fraction form
   3,784.51/5,222.23 = 2,105.92/x
3. Step 3: Cross multiply
   3,784.51x = 5,222.23 × 2,105.92
4. Step 4: Simplify right side
   3,784.51x = 10,997,598.60
5. Step 5: Solve for x
   x = 10,997,598.60/3,784.51
6. Step 6: Final answer
   x = 2,905.95