Finding the Fourth Proportional to 2,038.72, 3,058.24 and 1,012.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,038.72 : 3,058.24 = 1,012.16 : x
2. Step 2: Convert to fraction form
   2,038.72/3,058.24 = 1,012.16/x
3. Step 3: Cross multiply
   2,038.72x = 3,058.24 × 1,012.16
4. Step 4: Simplify right side
   2,038.72x = 3,095,428.20
5. Step 5: Solve for x
   x = 3,095,428.20/2,038.72
6. Step 6: Final answer
   x = 1,518.32