Finding the Fourth Proportional to 1,459.04, 2,012.74 and 869.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,459.04 : 2,012.74 = 869.15 : x
2. Step 2: Convert to fraction form
   1,459.04/2,012.74 = 869.15/x
3. Step 3: Cross multiply
   1,459.04x = 2,012.74 × 869.15
4. Step 4: Simplify right side
   1,459.04x = 1,749,375.83
5. Step 5: Solve for x
   x = 1,749,375.83/1,459.04
6. Step 6: Final answer
   x = 1,199.00