Finding the Fourth Proportional to 1,446.12, 1,995.52 and 856.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.12 : 1,995.52 = 856.56 : x
2. Step 2: Convert to fraction form
   1,446.12/1,995.52 = 856.56/x
3. Step 3: Cross multiply
   1,446.12x = 1,995.52 × 856.56
4. Step 4: Simplify right side
   1,446.12x = 1,709,282.61
5. Step 5: Solve for x
   x = 1,709,282.61/1,446.12
6. Step 6: Final answer
   x = 1,181.98