Finding the Fourth Proportional to 1,267.82, 1,748.52 and 819.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,267.82 : 1,748.52 = 819.76 : x
2. Step 2: Convert to fraction form
   1,267.82/1,748.52 = 819.76/x
3. Step 3: Cross multiply
   1,267.82x = 1,748.52 × 819.76
4. Step 4: Simplify right side
   1,267.82x = 1,433,366.76
5. Step 5: Solve for x
   x = 1,433,366.76/1,267.82
6. Step 6: Final answer
   x = 1,130.58