Finding the Fourth Proportional to 2,017.36, 3,025.12 and 784.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.36 : 3,025.12 = 784.43 : x
2. Step 2: Convert to fraction form
   2,017.36/3,025.12 = 784.43/x
3. Step 3: Cross multiply
   2,017.36x = 3,025.12 × 784.43
4. Step 4: Simplify right side
   2,017.36x = 2,373,009.83
5. Step 5: Solve for x
   x = 2,373,009.83/2,017.36
6. Step 6: Final answer
   x = 1,176.30