Finding the Fourth Proportional to 2,819.45, 4,230.52 and 1,259.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,819.45 : 4,230.52 = 1,259.33 : x
2. Step 2: Convert to fraction form
   2,819.45/4,230.52 = 1,259.33/x
3. Step 3: Cross multiply
   2,819.45x = 4,230.52 × 1,259.33
4. Step 4: Simplify right side
   2,819.45x = 5,327,596.45
5. Step 5: Solve for x
   x = 5,327,596.45/2,819.45
6. Step 6: Final answer
   x = 1,889.59