Finding the Fourth Proportional to 2,641.93, 3,963.42 and 1,181.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.93 : 3,963.42 = 1,181.07 : x
2. Step 2: Convert to fraction form
   2,641.93/3,963.42 = 1,181.07/x
3. Step 3: Cross multiply
   2,641.93x = 3,963.42 × 1,181.07
4. Step 4: Simplify right side
   2,641.93x = 4,681,076.46
5. Step 5: Solve for x
   x = 4,681,076.46/2,641.93
6. Step 6: Final answer
   x = 1,771.84