Finding the Fourth Proportional to 2,768.22, 4,151.58 and 1,380.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.22 : 4,151.58 = 1,380.53 : x
2. Step 2: Convert to fraction form
   2,768.22/4,151.58 = 1,380.53/x
3. Step 3: Cross multiply
   2,768.22x = 4,151.58 × 1,380.53
4. Step 4: Simplify right side
   2,768.22x = 5,731,359.98
5. Step 5: Solve for x
   x = 5,731,359.98/2,768.22
6. Step 6: Final answer
   x = 2,070.41