Finding the Fourth Proportional to 2,768.65, 4,155.33 and 1,381.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.65 : 4,155.33 = 1,381.58 : x
2. Step 2: Convert to fraction form
   2,768.65/4,155.33 = 1,381.58/x
3. Step 3: Cross multiply
   2,768.65x = 4,155.33 × 1,381.58
4. Step 4: Simplify right side
   2,768.65x = 5,740,900.04
5. Step 5: Solve for x
   x = 5,740,900.04/2,768.65
6. Step 6: Final answer
   x = 2,073.54