Finding the Fourth Proportional to 1,459.27, 2,013.55 and 869.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,459.27 : 2,013.55 = 869.59 : x
2. Step 2: Convert to fraction form
   1,459.27/2,013.55 = 869.59/x
3. Step 3: Cross multiply
   1,459.27x = 2,013.55 × 869.59
4. Step 4: Simplify right side
   1,459.27x = 1,750,962.94
5. Step 5: Solve for x
   x = 1,750,962.94/1,459.27
6. Step 6: Final answer
   x = 1,199.89