Finding the Fourth Proportional to 2,768.43, 4,151.55 and 1,012.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.43 : 4,151.55 = 1,012.91 : x
2. Step 2: Convert to fraction form
   2,768.43/4,151.55 = 1,012.91/x
3. Step 3: Cross multiply
   2,768.43x = 4,151.55 × 1,012.91
4. Step 4: Simplify right side
   2,768.43x = 4,205,129.55
5. Step 5: Solve for x
   x = 4,205,129.55/2,768.43
6. Step 6: Final answer
   x = 1,518.96