Finding the Fourth Proportional to 1,447.94, 1,998.16 and 784.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447.94 : 1,998.16 = 784.79 : x
2. Step 2: Convert to fraction form
   1,447.94/1,998.16 = 784.79/x
3. Step 3: Cross multiply
   1,447.94x = 1,998.16 × 784.79
4. Step 4: Simplify right side
   1,447.94x = 1,568,124.03
5. Step 5: Solve for x
   x = 1,568,124.03/1,447.94
6. Step 6: Final answer
   x = 1,083.01