Finding the Fourth Proportional to 2,598.29, 3,897.82 and 842.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,598.29 : 3,897.82 = 842.72 : x
2. Step 2: Convert to fraction form
   2,598.29/3,897.82 = 842.72/x
3. Step 3: Cross multiply
   2,598.29x = 3,897.82 × 842.72
4. Step 4: Simplify right side
   2,598.29x = 3,284,778.51
5. Step 5: Solve for x
   x = 3,284,778.51/2,598.29
6. Step 6: Final answer
   x = 1,264.21