Finding the Fourth Proportional to 2,321.71, 3,204.43 and 1,575.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,321.71 : 3,204.43 = 1,575.91 : x
2. Step 2: Convert to fraction form
   2,321.71/3,204.43 = 1,575.91/x
3. Step 3: Cross multiply
   2,321.71x = 3,204.43 × 1,575.91
4. Step 4: Simplify right side
   2,321.71x = 5,049,891.25
5. Step 5: Solve for x
   x = 5,049,891.25/2,321.71
6. Step 6: Final answer
   x = 2,175.08