Finding the Fourth Proportional to 2,661.94, 3,673.30 and 1,542.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.94 : 3,673.30 = 1,542.79 : x
2. Step 2: Convert to fraction form
   2,661.94/3,673.30 = 1,542.79/x
3. Step 3: Cross multiply
   2,661.94x = 3,673.30 × 1,542.79
4. Step 4: Simplify right side
   2,661.94x = 5,667,113.47
5. Step 5: Solve for x
   x = 5,667,113.47/2,661.94
6. Step 6: Final answer
   x = 2,128.94