Finding the Fourth Proportional to 2,042.76, 3,064.54 and 872.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.76 : 3,064.54 = 872.76 : x
2. Step 2: Convert to fraction form
   2,042.76/3,064.54 = 872.76/x
3. Step 3: Cross multiply
   2,042.76x = 3,064.54 × 872.76
4. Step 4: Simplify right side
   2,042.76x = 2,674,607.93
5. Step 5: Solve for x
   x = 2,674,607.93/2,042.76
6. Step 6: Final answer
   x = 1,309.31