Finding the Fourth Proportional to 2,768.47, 4,155.05 and 1,381.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.47 : 4,155.05 = 1,381.39 : x
2. Step 2: Convert to fraction form
   2,768.47/4,155.05 = 1,381.39/x
3. Step 3: Cross multiply
   2,768.47x = 4,155.05 × 1,381.39
4. Step 4: Simplify right side
   2,768.47x = 5,739,737.59
5. Step 5: Solve for x
   x = 5,739,737.59/2,768.47
6. Step 6: Final answer
   x = 2,073.25