Finding the Fourth Proportional to 2,519, 3,777.78 and 1,058.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,519 : 3,777.78 = 1,058.12 : x
2. Step 2: Convert to fraction form
   2,519/3,777.78 = 1,058.12/x
3. Step 3: Cross multiply
   2,519x = 3,777.78 × 1,058.12
4. Step 4: Simplify right side
   2,519x = 3,997,344.57
5. Step 5: Solve for x
   x = 3,997,344.57/2,519
6. Step 6: Final answer
   x = 1,586.88