Finding the Fourth Proportional to 2,317.98, 3,198.51 and 1,571.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,317.98 : 3,198.51 = 1,571.58 : x
2. Step 2: Convert to fraction form
   2,317.98/3,198.51 = 1,571.58/x
3. Step 3: Cross multiply
   2,317.98x = 3,198.51 × 1,571.58
4. Step 4: Simplify right side
   2,317.98x = 5,026,714.35
5. Step 5: Solve for x
   x = 5,026,714.35/2,317.98
6. Step 6: Final answer
   x = 2,168.58