Finding the Fourth Proportional to 1,439.73, 1,987.46 and 1,119.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,439.73 : 1,987.46 = 1,119.98 : x
2. Step 2: Convert to fraction form
   1,439.73/1,987.46 = 1,119.98/x
3. Step 3: Cross multiply
   1,439.73x = 1,987.46 × 1,119.98
4. Step 4: Simplify right side
   1,439.73x = 2,225,899.91
5. Step 5: Solve for x
   x = 2,225,899.91/1,439.73
6. Step 6: Final answer
   x = 1,546.05