Finding the Fourth Proportional to 2,015.01, 3,022.47 and 554.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.01 : 3,022.47 = 554.18 : x
2. Step 2: Convert to fraction form
   2,015.01/3,022.47 = 554.18/x
3. Step 3: Cross multiply
   2,015.01x = 3,022.47 × 554.18
4. Step 4: Simplify right side
   2,015.01x = 1,674,977.31
5. Step 5: Solve for x
   x = 1,674,977.31/2,015.01
6. Step 6: Final answer
   x = 831.25