Finding the Fourth Proportional to 2,206.72, 3,307.52 and 1,181.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,206.72 : 3,307.52 = 1,181.44 : x
2. Step 2: Convert to fraction form
   2,206.72/3,307.52 = 1,181.44/x
3. Step 3: Cross multiply
   2,206.72x = 3,307.52 × 1,181.44
4. Step 4: Simplify right side
   2,206.72x = 3,907,636.43
5. Step 5: Solve for x
   x = 3,907,636.43/2,206.72
6. Step 6: Final answer
   x = 1,770.79