Finding the Fourth Proportional to 2,789.22, 4,184.64 and 841.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.22 : 4,184.64 = 841.71 : x
2. Step 2: Convert to fraction form
   2,789.22/4,184.64 = 841.71/x
3. Step 3: Cross multiply
   2,789.22x = 4,184.64 × 841.71
4. Step 4: Simplify right side
   2,789.22x = 3,522,253.33
5. Step 5: Solve for x
   x = 3,522,253.33/2,789.22
6. Step 6: Final answer
   x = 1,262.81