Finding the Fourth Proportional to 2,042.86, 3,063.64 and 872.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.86 : 3,063.64 = 872.84 : x
2. Step 2: Convert to fraction form
   2,042.86/3,063.64 = 872.84/x
3. Step 3: Cross multiply
   2,042.86x = 3,063.64 × 872.84
4. Step 4: Simplify right side
   2,042.86x = 2,674,067.54
5. Step 5: Solve for x
   x = 2,674,067.54/2,042.86
6. Step 6: Final answer
   x = 1,308.98