Finding the Fourth Proportional to 2,598.50, 3,897.89 and 867.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,598.50 : 3,897.89 = 867.26 : x
2. Step 2: Convert to fraction form
   2,598.50/3,897.89 = 867.26/x
3. Step 3: Cross multiply
   2,598.50x = 3,897.89 × 867.26
4. Step 4: Simplify right side
   2,598.50x = 3,380,460.26
5. Step 5: Solve for x
   x = 3,380,460.26/2,598.50
6. Step 6: Final answer
   x = 1,300.93