Finding the Fourth Proportional to 2,721.84, 4,083.34 and 872.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,721.84 : 4,083.34 = 872.52 : x
2. Step 2: Convert to fraction form
   2,721.84/4,083.34 = 872.52/x
3. Step 3: Cross multiply
   2,721.84x = 4,083.34 × 872.52
4. Step 4: Simplify right side
   2,721.84x = 3,562,795.82
5. Step 5: Solve for x
   x = 3,562,795.82/2,721.84
6. Step 6: Final answer
   x = 1,308.97