Finding the Fourth Proportional to 1,443.04, 1,990.24 and 1,268

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.04 : 1,990.24 = 1,268 : x
2. Step 2: Convert to fraction form
   1,443.04/1,990.24 = 1,268/x
3. Step 3: Cross multiply
   1,443.04x = 1,990.24 × 1,268
4. Step 4: Simplify right side
   1,443.04x = 2,523,624.32
5. Step 5: Solve for x
   x = 2,523,624.32/1,443.04
6. Step 6: Final answer
   x = 1,748.82