Finding the Fourth Proportional to 1,219.94, 1,839.03 and 1,116.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,219.94 : 1,839.03 = 1,116.15 : x
2. Step 2: Convert to fraction form
   1,219.94/1,839.03 = 1,116.15/x
3. Step 3: Cross multiply
   1,219.94x = 1,839.03 × 1,116.15
4. Step 4: Simplify right side
   1,219.94x = 2,052,633.33
5. Step 5: Solve for x
   x = 2,052,633.33/1,219.94
6. Step 6: Final answer
   x = 1,682.58