Finding the Fourth Proportional to 2,175.78, 3,002.56 and 1,181.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175.78 : 3,002.56 = 1,181.05 : x
2. Step 2: Convert to fraction form
   2,175.78/3,002.56 = 1,181.05/x
3. Step 3: Cross multiply
   2,175.78x = 3,002.56 × 1,181.05
4. Step 4: Simplify right side
   2,175.78x = 3,546,158.48
5. Step 5: Solve for x
   x = 3,546,158.48/2,175.78
6. Step 6: Final answer
   x = 1,629.84