Finding the Fourth Proportional to 2,141.32, 3,211.59 and 581.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141.32 : 3,211.59 = 581.44 : x
2. Step 2: Convert to fraction form
   2,141.32/3,211.59 = 581.44/x
3. Step 3: Cross multiply
   2,141.32x = 3,211.59 × 581.44
4. Step 4: Simplify right side
   2,141.32x = 1,867,346.89
5. Step 5: Solve for x
   x = 1,867,346.89/2,141.32
6. Step 6: Final answer
   x = 872.05