Finding the Fourth Proportional to 1,929.72, 2,653.20 and 1,717.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,929.72 : 2,653.20 = 1,717.92 : x
2. Step 2: Convert to fraction form
   1,929.72/2,653.20 = 1,717.92/x
3. Step 3: Cross multiply
   1,929.72x = 2,653.20 × 1,717.92
4. Step 4: Simplify right side
   1,929.72x = 4,557,985.34
5. Step 5: Solve for x
   x = 4,557,985.34/1,929.72
6. Step 6: Final answer
   x = 2,361.99