Finding the Fourth Proportional to 1,721.06, 2,580.78 and 940.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721.06 : 2,580.78 = 940.82 : x
2. Step 2: Convert to fraction form
   1,721.06/2,580.78 = 940.82/x
3. Step 3: Cross multiply
   1,721.06x = 2,580.78 × 940.82
4. Step 4: Simplify right side
   1,721.06x = 2,428,049.44
5. Step 5: Solve for x
   x = 2,428,049.44/1,721.06
6. Step 6: Final answer
   x = 1,410.79