Finding the Fourth Proportional to 2,673.78, 4,009.95 and 942.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,673.78 : 4,009.95 = 942.18 : x
2. Step 2: Convert to fraction form
   2,673.78/4,009.95 = 942.18/x
3. Step 3: Cross multiply
   2,673.78x = 4,009.95 × 942.18
4. Step 4: Simplify right side
   2,673.78x = 3,778,094.69
5. Step 5: Solve for x
   x = 3,778,094.69/2,673.78
6. Step 6: Final answer
   x = 1,413.02