Finding the Fourth Proportional to 2,019.72, 2,788.59 and 1,488.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.72 : 2,788.59 = 1,488.67 : x
2. Step 2: Convert to fraction form
   2,019.72/2,788.59 = 1,488.67/x
3. Step 3: Cross multiply
   2,019.72x = 2,788.59 × 1,488.67
4. Step 4: Simplify right side
   2,019.72x = 4,151,290.28
5. Step 5: Solve for x
   x = 4,151,290.28/2,019.72
6. Step 6: Final answer
   x = 2,055.38