Finding the Fourth Proportional to 2,141.50, 3,211.02 and 842.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141.50 : 3,211.02 = 842.26 : x
2. Step 2: Convert to fraction form
   2,141.50/3,211.02 = 842.26/x
3. Step 3: Cross multiply
   2,141.50x = 3,211.02 × 842.26
4. Step 4: Simplify right side
   2,141.50x = 2,704,513.71
5. Step 5: Solve for x
   x = 2,704,513.71/2,141.50
6. Step 6: Final answer
   x = 1,262.91