Finding the Fourth Proportional to 2,159.98, 3,238.04 and 843.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159.98 : 3,238.04 = 843.43 : x
2. Step 2: Convert to fraction form
   2,159.98/3,238.04 = 843.43/x
3. Step 3: Cross multiply
   2,159.98x = 3,238.04 × 843.43
4. Step 4: Simplify right side
   2,159.98x = 2,731,054.09
5. Step 5: Solve for x
   x = 2,731,054.09/2,159.98
6. Step 6: Final answer
   x = 1,264.39