Finding the Fourth Proportional to 1,485.47, 2,050.04 and 856.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.47 : 2,050.04 = 856.17 : x
2. Step 2: Convert to fraction form
   1,485.47/2,050.04 = 856.17/x
3. Step 3: Cross multiply
   1,485.47x = 2,050.04 × 856.17
4. Step 4: Simplify right side
   1,485.47x = 1,755,184.89
5. Step 5: Solve for x
   x = 1,755,184.89/1,485.47
6. Step 6: Final answer
   x = 1,181.57