Finding the Fourth Proportional to 2,064.69, 3,098.88 and 1,286.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,064.69 : 3,098.88 = 1,286.19 : x
2. Step 2: Convert to fraction form
   2,064.69/3,098.88 = 1,286.19/x
3. Step 3: Cross multiply
   2,064.69x = 3,098.88 × 1,286.19
4. Step 4: Simplify right side
   2,064.69x = 3,985,748.47
5. Step 5: Solve for x
   x = 3,985,748.47/2,064.69
6. Step 6: Final answer
   x = 1,930.43