Finding the Fourth Proportional to 2,219.67, 3,329.91 and 1,180.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.67 : 3,329.91 = 1,180.17 : x
2. Step 2: Convert to fraction form
   2,219.67/3,329.91 = 1,180.17/x
3. Step 3: Cross multiply
   2,219.67x = 3,329.91 × 1,180.17
4. Step 4: Simplify right side
   2,219.67x = 3,929,859.88
5. Step 5: Solve for x
   x = 3,929,859.88/2,219.67
6. Step 6: Final answer
   x = 1,770.47