Finding the Fourth Proportional to 1,485.82, 2,050.17 and 856.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.82 : 2,050.17 = 856.27 : x
2. Step 2: Convert to fraction form
   1,485.82/2,050.17 = 856.27/x
3. Step 3: Cross multiply
   1,485.82x = 2,050.17 × 856.27
4. Step 4: Simplify right side
   1,485.82x = 1,755,488.82
5. Step 5: Solve for x
   x = 1,755,488.82/1,485.82
6. Step 6: Final answer
   x = 1,181.50