Finding the Fourth Proportional to 2,519.68, 3,779.72 and 1,059

Step by Step Solution

1. Step 1: Write the proportion equation
   2,519.68 : 3,779.72 = 1,059 : x
2. Step 2: Convert to fraction form
   2,519.68/3,779.72 = 1,059/x
3. Step 3: Cross multiply
   2,519.68x = 3,779.72 × 1,059
4. Step 4: Simplify right side
   2,519.68x = 4,002,723.48
5. Step 5: Solve for x
   x = 4,002,723.48/2,519.68
6. Step 6: Final answer
   x = 1,588.58