Finding the Fourth Proportional to 1,447.52, 1,997.59 and 784.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447.52 : 1,997.59 = 784.38 : x
2. Step 2: Convert to fraction form
   1,447.52/1,997.59 = 784.38/x
3. Step 3: Cross multiply
   1,447.52x = 1,997.59 × 784.38
4. Step 4: Simplify right side
   1,447.52x = 1,566,866.76
5. Step 5: Solve for x
   x = 1,566,866.76/1,447.52
6. Step 6: Final answer
   x = 1,082.45