Finding the Fourth Proportional to 2,801.19, 3,865.41 and 1,542.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,801.19 : 3,865.41 = 1,542.05 : x
2. Step 2: Convert to fraction form
   2,801.19/3,865.41 = 1,542.05/x
3. Step 3: Cross multiply
   2,801.19x = 3,865.41 × 1,542.05
4. Step 4: Simplify right side
   2,801.19x = 5,960,650.66
5. Step 5: Solve for x
   x = 5,960,650.66/2,801.19
6. Step 6: Final answer
   x = 2,127.90