Finding the Fourth Proportional to 1,427.32, 1,965.72 and 1,152.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.32 : 1,965.72 = 1,152.73 : x
2. Step 2: Convert to fraction form
   1,427.32/1,965.72 = 1,152.73/x
3. Step 3: Cross multiply
   1,427.32x = 1,965.72 × 1,152.73
4. Step 4: Simplify right side
   1,427.32x = 2,265,944.42
5. Step 5: Solve for x
   x = 2,265,944.42/1,427.32
6. Step 6: Final answer
   x = 1,587.55