Finding the Fourth Proportional to 1,081.80, 1,488.57 and 1,049.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.80 : 1,488.57 = 1,049.67 : x
2. Step 2: Convert to fraction form
   1,081.80/1,488.57 = 1,049.67/x
3. Step 3: Cross multiply
   1,081.80x = 1,488.57 × 1,049.67
4. Step 4: Simplify right side
   1,081.80x = 1,562,507.27
5. Step 5: Solve for x
   x = 1,562,507.27/1,081.80
6. Step 6: Final answer
   x = 1,444.36