Finding the Fourth Proportional to 2,141.16, 3,208.50 and 841.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141.16 : 3,208.50 = 841.92 : x
2. Step 2: Convert to fraction form
   2,141.16/3,208.50 = 841.92/x
3. Step 3: Cross multiply
   2,141.16x = 3,208.50 × 841.92
4. Step 4: Simplify right side
   2,141.16x = 2,701,300.32
5. Step 5: Solve for x
   x = 2,701,300.32/2,141.16
6. Step 6: Final answer
   x = 1,261.61