Finding the Fourth Proportional to 2,590.71, 3,575.21 and 1,542.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590.71 : 3,575.21 = 1,542.57 : x
2. Step 2: Convert to fraction form
   2,590.71/3,575.21 = 1,542.57/x
3. Step 3: Cross multiply
   2,590.71x = 3,575.21 × 1,542.57
4. Step 4: Simplify right side
   2,590.71x = 5,515,003.98
5. Step 5: Solve for x
   x = 5,515,003.98/2,590.71
6. Step 6: Final answer
   x = 2,128.76