Finding the Fourth Proportional to 3,783.54, 5,221.34 and 2,105.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,783.54 : 5,221.34 = 2,105.01 : x
2. Step 2: Convert to fraction form
   3,783.54/5,221.34 = 2,105.01/x
3. Step 3: Cross multiply
   3,783.54x = 5,221.34 × 2,105.01
4. Step 4: Simplify right side
   3,783.54x = 10,990,962.39
5. Step 5: Solve for x
   x = 10,990,962.39/3,783.54
6. Step 6: Final answer
   x = 2,904.94