Finding the Fourth Proportional to 2,030.72, 2,802.83 and 1,285.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.72 : 2,802.83 = 1,285.67 : x
2. Step 2: Convert to fraction form
   2,030.72/2,802.83 = 1,285.67/x
3. Step 3: Cross multiply
   2,030.72x = 2,802.83 × 1,285.67
4. Step 4: Simplify right side
   2,030.72x = 3,603,516.57
5. Step 5: Solve for x
   x = 3,603,516.57/2,030.72
6. Step 6: Final answer
   x = 1,774.50