Finding the Fourth Proportional to 2,028.90, 2,799.82 and 1,178.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,028.90 : 2,799.82 = 1,178.25 : x
2. Step 2: Convert to fraction form
   2,028.90/2,799.82 = 1,178.25/x
3. Step 3: Cross multiply
   2,028.90x = 2,799.82 × 1,178.25
4. Step 4: Simplify right side
   2,028.90x = 3,298,872.26
5. Step 5: Solve for x
   x = 3,298,872.26/2,028.90
6. Step 6: Final answer
   x = 1,625.94