Finding the Fourth Proportional to 3,581.67, 5,374.55 and 1,939.14

Step by Step Solution

1. Step 1: Write the proportion equation
   3,581.67 : 5,374.55 = 1,939.14 : x
2. Step 2: Convert to fraction form
   3,581.67/5,374.55 = 1,939.14/x
3. Step 3: Cross multiply
   3,581.67x = 5,374.55 × 1,939.14
4. Step 4: Simplify right side
   3,581.67x = 10,422,009.73
5. Step 5: Solve for x
   x = 10,422,009.73/3,581.67
6. Step 6: Final answer
   x = 2,909.82