Finding the Fourth Proportional to 1,920.72, 2,875.23 and 1,754.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920.72 : 2,875.23 = 1,754.31 : x
2. Step 2: Convert to fraction form
   1,920.72/2,875.23 = 1,754.31/x
3. Step 3: Cross multiply
   1,920.72x = 2,875.23 × 1,754.31
4. Step 4: Simplify right side
   1,920.72x = 5,044,044.74
5. Step 5: Solve for x
   x = 5,044,044.74/1,920.72
6. Step 6: Final answer
   x = 2,626.12