Finding the Fourth Proportional to 2,590.21, 3,574.52 and 1,542.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590.21 : 3,574.52 = 1,542.07 : x
2. Step 2: Convert to fraction form
   2,590.21/3,574.52 = 1,542.07/x
3. Step 3: Cross multiply
   2,590.21x = 3,574.52 × 1,542.07
4. Step 4: Simplify right side
   2,590.21x = 5,512,160.06
5. Step 5: Solve for x
   x = 5,512,160.06/2,590.21
6. Step 6: Final answer
   x = 2,128.07