Finding the Fourth Proportional to 2,765.15, 4,142.17 and 1,374.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,765.15 : 4,142.17 = 1,374.28 : x
2. Step 2: Convert to fraction form
   2,765.15/4,142.17 = 1,374.28/x
3. Step 3: Cross multiply
   2,765.15x = 4,142.17 × 1,374.28
4. Step 4: Simplify right side
   2,765.15x = 5,692,501.39
5. Step 5: Solve for x
   x = 5,692,501.39/2,765.15
6. Step 6: Final answer
   x = 2,058.66