Finding the Fourth Proportional to 1,796.84, 2,690.40 and 1,218.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,796.84 : 2,690.40 = 1,218.56 : x
2. Step 2: Convert to fraction form
   1,796.84/2,690.40 = 1,218.56/x
3. Step 3: Cross multiply
   1,796.84x = 2,690.40 × 1,218.56
4. Step 4: Simplify right side
   1,796.84x = 3,278,413.82
5. Step 5: Solve for x
   x = 3,278,413.82/1,796.84
6. Step 6: Final answer
   x = 1,824.54