Finding the Fourth Proportional to 2,572.01, 3,857.71 and 1,013.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572.01 : 3,857.71 = 1,013.16 : x
2. Step 2: Convert to fraction form
   2,572.01/3,857.71 = 1,013.16/x
3. Step 3: Cross multiply
   2,572.01x = 3,857.71 × 1,013.16
4. Step 4: Simplify right side
   2,572.01x = 3,908,477.46
5. Step 5: Solve for x
   x = 3,908,477.46/2,572.01
6. Step 6: Final answer
   x = 1,519.62