Finding the Fourth Proportional to 2,767.35, 4,151.01 and 819.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,767.35 : 4,151.01 = 819.69 : x
2. Step 2: Convert to fraction form
   2,767.35/4,151.01 = 819.69/x
3. Step 3: Cross multiply
   2,767.35x = 4,151.01 × 819.69
4. Step 4: Simplify right side
   2,767.35x = 3,402,541.39
5. Step 5: Solve for x
   x = 3,402,541.39/2,767.35
6. Step 6: Final answer
   x = 1,229.53