Finding the Fourth Proportional to 1,867.29, 2,577.01 and 1,028.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,867.29 : 2,577.01 = 1,028.15 : x
2. Step 2: Convert to fraction form
   1,867.29/2,577.01 = 1,028.15/x
3. Step 3: Cross multiply
   1,867.29x = 2,577.01 × 1,028.15
4. Step 4: Simplify right side
   1,867.29x = 2,649,552.83
5. Step 5: Solve for x
   x = 2,649,552.83/1,867.29
6. Step 6: Final answer
   x = 1,418.93