Finding the Fourth Proportional to 2,520.12, 3,776.33 and 1,058.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.12 : 3,776.33 = 1,058.47 : x
2. Step 2: Convert to fraction form
   2,520.12/3,776.33 = 1,058.47/x
3. Step 3: Cross multiply
   2,520.12x = 3,776.33 × 1,058.47
4. Step 4: Simplify right side
   2,520.12x = 3,997,132.02
5. Step 5: Solve for x
   x = 3,997,132.02/2,520.12
6. Step 6: Final answer
   x = 1,586.09