Finding the Fourth Proportional to 1,443.03, 1,991.84 and 995.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.03 : 1,991.84 = 995.13 : x
2. Step 2: Convert to fraction form
   1,443.03/1,991.84 = 995.13/x
3. Step 3: Cross multiply
   1,443.03x = 1,991.84 × 995.13
4. Step 4: Simplify right side
   1,443.03x = 1,982,134.76
5. Step 5: Solve for x
   x = 1,982,134.76/1,443.03
6. Step 6: Final answer
   x = 1,373.59