Finding the Fourth Proportional to 2,194.16, 3,028.78 and 1,355

Step by Step Solution

1. Step 1: Write the proportion equation
   2,194.16 : 3,028.78 = 1,355 : x
2. Step 2: Convert to fraction form
   2,194.16/3,028.78 = 1,355/x
3. Step 3: Cross multiply
   2,194.16x = 3,028.78 × 1,355
4. Step 4: Simplify right side
   2,194.16x = 4,103,996.90
5. Step 5: Solve for x
   x = 4,103,996.90/2,194.16
6. Step 6: Final answer
   x = 1,870.42