Finding the Fourth Proportional to 1,064.82, 1,595.61 and 487.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.82 : 1,595.61 = 487.02 : x
2. Step 2: Convert to fraction form
   1,064.82/1,595.61 = 487.02/x
3. Step 3: Cross multiply
   1,064.82x = 1,595.61 × 487.02
4. Step 4: Simplify right side
   1,064.82x = 777,093.98
5. Step 5: Solve for x
   x = 777,093.98/1,064.82
6. Step 6: Final answer
   x = 729.79