Finding the Fourth Proportional to 1,485.49, 2,049.94 and 856.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.49 : 2,049.94 = 856.01 : x
2. Step 2: Convert to fraction form
   1,485.49/2,049.94 = 856.01/x
3. Step 3: Cross multiply
   1,485.49x = 2,049.94 × 856.01
4. Step 4: Simplify right side
   1,485.49x = 1,754,769.57
5. Step 5: Solve for x
   x = 1,754,769.57/1,485.49
6. Step 6: Final answer
   x = 1,181.27