Finding the Fourth Proportional to 1,447.95, 1,998.14 and 784.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447.95 : 1,998.14 = 784.79 : x
2. Step 2: Convert to fraction form
   1,447.95/1,998.14 = 784.79/x
3. Step 3: Cross multiply
   1,447.95x = 1,998.14 × 784.79
4. Step 4: Simplify right side
   1,447.95x = 1,568,116.37
5. Step 5: Solve for x
   x = 1,568,116.37/1,447.95
6. Step 6: Final answer
   x = 1,082.99