Finding the Fourth Proportional to 2,781.72, 4,172.22 and 1,394.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,781.72 : 4,172.22 = 1,394.82 : x
2. Step 2: Convert to fraction form
   2,781.72/4,172.22 = 1,394.82/x
3. Step 3: Cross multiply
   2,781.72x = 4,172.22 × 1,394.82
4. Step 4: Simplify right side
   2,781.72x = 5,819,495.90
5. Step 5: Solve for x
   x = 5,819,495.90/2,781.72
6. Step 6: Final answer
   x = 2,092.05