Finding the Fourth Proportional to 1,459.32, 2,013.72 and 869.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,459.32 : 2,013.72 = 869.76 : x
2. Step 2: Convert to fraction form
   1,459.32/2,013.72 = 869.76/x
3. Step 3: Cross multiply
   1,459.32x = 2,013.72 × 869.76
4. Step 4: Simplify right side
   1,459.32x = 1,751,453.11
5. Step 5: Solve for x
   x = 1,751,453.11/1,459.32
6. Step 6: Final answer
   x = 1,200.18