Finding the Fourth Proportional to 2,801.27, 3,865.76 and 1,542.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,801.27 : 3,865.76 = 1,542.29 : x
2. Step 2: Convert to fraction form
   2,801.27/3,865.76 = 1,542.29/x
3. Step 3: Cross multiply
   2,801.27x = 3,865.76 × 1,542.29
4. Step 4: Simplify right side
   2,801.27x = 5,962,123.48
5. Step 5: Solve for x
   x = 5,962,123.48/2,801.27
6. Step 6: Final answer
   x = 2,128.37