Finding the Fourth Proportional to 1,447.38, 1,997.38 and 784.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447.38 : 1,997.38 = 784.23 : x
2. Step 2: Convert to fraction form
   1,447.38/1,997.38 = 784.23/x
3. Step 3: Cross multiply
   1,447.38x = 1,997.38 × 784.23
4. Step 4: Simplify right side
   1,447.38x = 1,566,403.36
5. Step 5: Solve for x
   x = 1,566,403.36/1,447.38
6. Step 6: Final answer
   x = 1,082.23