Finding the Fourth Proportional to 2,643.23, 3,963.74 and 1,181.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.23 : 3,963.74 = 1,181.59 : x
2. Step 2: Convert to fraction form
   2,643.23/3,963.74 = 1,181.59/x
3. Step 3: Cross multiply
   2,643.23x = 3,963.74 × 1,181.59
4. Step 4: Simplify right side
   2,643.23x = 4,683,499.73
5. Step 5: Solve for x
   x = 4,683,499.73/2,643.23
6. Step 6: Final answer
   x = 1,771.88