Finding the Fourth Proportional to 3,722.22, 5,581.89 and 1,381.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,722.22 : 5,581.89 = 1,381.86 : x
2. Step 2: Convert to fraction form
   3,722.22/5,581.89 = 1,381.86/x
3. Step 3: Cross multiply
   3,722.22x = 5,581.89 × 1,381.86
4. Step 4: Simplify right side
   3,722.22x = 7,713,390.52
5. Step 5: Solve for x
   x = 7,713,390.52/3,722.22
6. Step 6: Final answer
   x = 2,072.26