Finding the Fourth Proportional to 2,016.87, 3,025.50 and 784.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.87 : 3,025.50 = 784.38 : x
2. Step 2: Convert to fraction form
   2,016.87/3,025.50 = 784.38/x
3. Step 3: Cross multiply
   2,016.87x = 3,025.50 × 784.38
4. Step 4: Simplify right side
   2,016.87x = 2,373,135.28
5. Step 5: Solve for x
   x = 2,373,135.28/2,016.87
6. Step 6: Final answer
   x = 1,176.64