Finding the Fourth Proportional to 2,641.10, 3,963.01 and 1,342.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.10 : 3,963.01 = 1,342.57 : x
2. Step 2: Convert to fraction form
   2,641.10/3,963.01 = 1,342.57/x
3. Step 3: Cross multiply
   2,641.10x = 3,963.01 × 1,342.57
4. Step 4: Simplify right side
   2,641.10x = 5,320,598.52
5. Step 5: Solve for x
   x = 5,320,598.52/2,641.10
6. Step 6: Final answer
   x = 2,014.54