Finding the Fourth Proportional to 1,459.97, 2,014.71 and 870.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,459.97 : 2,014.71 = 870.20 : x
2. Step 2: Convert to fraction form
   1,459.97/2,014.71 = 870.20/x
3. Step 3: Cross multiply
   1,459.97x = 2,014.71 × 870.20
4. Step 4: Simplify right side
   1,459.97x = 1,753,200.64
5. Step 5: Solve for x
   x = 1,753,200.64/1,459.97
6. Step 6: Final answer
   x = 1,200.85