Finding the Fourth Proportional to 3,492.69, 4,819.33 and 2,077.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,492.69 : 4,819.33 = 2,077.21 : x
2. Step 2: Convert to fraction form
   3,492.69/4,819.33 = 2,077.21/x
3. Step 3: Cross multiply
   3,492.69x = 4,819.33 × 2,077.21
4. Step 4: Simplify right side
   3,492.69x = 10,010,760.47
5. Step 5: Solve for x
   x = 10,010,760.47/3,492.69
6. Step 6: Final answer
   x = 2,866.20