Finding the Fourth Proportional to 2,520.06, 3,780.28 and 1,058.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.06 : 3,780.28 = 1,058.96 : x
2. Step 2: Convert to fraction form
   2,520.06/3,780.28 = 1,058.96/x
3. Step 3: Cross multiply
   2,520.06x = 3,780.28 × 1,058.96
4. Step 4: Simplify right side
   2,520.06x = 4,003,165.31
5. Step 5: Solve for x
   x = 4,003,165.31/2,520.06
6. Step 6: Final answer
   x = 1,588.52