Finding the Fourth Proportional to 2,820.54, 3,886.05 and 1,874.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,820.54 : 3,886.05 = 1,874.67 : x
2. Step 2: Convert to fraction form
   2,820.54/3,886.05 = 1,874.67/x
3. Step 3: Cross multiply
   2,820.54x = 3,886.05 × 1,874.67
4. Step 4: Simplify right side
   2,820.54x = 7,285,061.35
5. Step 5: Solve for x
   x = 7,285,061.35/2,820.54
6. Step 6: Final answer
   x = 2,582.86