Finding the Fourth Proportional to 2,017.12, 3,023.52 and 846.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.12 : 3,023.52 = 846.40 : x
2. Step 2: Convert to fraction form
   2,017.12/3,023.52 = 846.40/x
3. Step 3: Cross multiply
   2,017.12x = 3,023.52 × 846.40
4. Step 4: Simplify right side
   2,017.12x = 2,559,107.33
5. Step 5: Solve for x
   x = 2,559,107.33/2,017.12
6. Step 6: Final answer
   x = 1,268.69