Finding the Fourth Proportional to 1,485.31, 2,050.01 and 856.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.31 : 2,050.01 = 856.25 : x
2. Step 2: Convert to fraction form
   1,485.31/2,050.01 = 856.25/x
3. Step 3: Cross multiply
   1,485.31x = 2,050.01 × 856.25
4. Step 4: Simplify right side
   1,485.31x = 1,755,321.06
5. Step 5: Solve for x
   x = 1,755,321.06/1,485.31
6. Step 6: Final answer
   x = 1,181.79