Finding the Fourth Proportional to 2,573.34, 3,860.49 and 843.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573.34 : 3,860.49 = 843.18 : x
2. Step 2: Convert to fraction form
   2,573.34/3,860.49 = 843.18/x
3. Step 3: Cross multiply
   2,573.34x = 3,860.49 × 843.18
4. Step 4: Simplify right side
   2,573.34x = 3,255,087.96
5. Step 5: Solve for x
   x = 3,255,087.96/2,573.34
6. Step 6: Final answer
   x = 1,264.93