Finding the Fourth Proportional to 2,194.85, 3,028.86 and 1,200.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,194.85 : 3,028.86 = 1,200.12 : x
2. Step 2: Convert to fraction form
   2,194.85/3,028.86 = 1,200.12/x
3. Step 3: Cross multiply
   2,194.85x = 3,028.86 × 1,200.12
4. Step 4: Simplify right side
   2,194.85x = 3,634,995.46
5. Step 5: Solve for x
   x = 3,634,995.46/2,194.85
6. Step 6: Final answer
   x = 1,656.15