Finding the Fourth Proportional to 1,721.67, 2,376.69 and 1,302.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721.67 : 2,376.69 = 1,302.09 : x
2. Step 2: Convert to fraction form
   1,721.67/2,376.69 = 1,302.09/x
3. Step 3: Cross multiply
   1,721.67x = 2,376.69 × 1,302.09
4. Step 4: Simplify right side
   1,721.67x = 3,094,664.28
5. Step 5: Solve for x
   x = 3,094,664.28/1,721.67
6. Step 6: Final answer
   x = 1,797.48