Finding the Fourth Proportional to 2,768.61, 4,151.82 and 1,381.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.61 : 4,151.82 = 1,381.45 : x
2. Step 2: Convert to fraction form
   2,768.61/4,151.82 = 1,381.45/x
3. Step 3: Cross multiply
   2,768.61x = 4,151.82 × 1,381.45
4. Step 4: Simplify right side
   2,768.61x = 5,735,524.83
5. Step 5: Solve for x
   x = 5,735,524.83/2,768.61
6. Step 6: Final answer
   x = 2,071.63