Finding the Fourth Proportional to 1,498.85, 2,065.49 and 1,078.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.85 : 2,065.49 = 1,078.46 : x
2. Step 2: Convert to fraction form
   1,498.85/2,065.49 = 1,078.46/x
3. Step 3: Cross multiply
   1,498.85x = 2,065.49 × 1,078.46
4. Step 4: Simplify right side
   1,498.85x = 2,227,556.21
5. Step 5: Solve for x
   x = 2,227,556.21/1,498.85
6. Step 6: Final answer
   x = 1,486.17