Finding the Fourth Proportional to 1,577.78, 2,366.69 and 482.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,577.78 : 2,366.69 = 482.15 : x
2. Step 2: Convert to fraction form
   1,577.78/2,366.69 = 482.15/x
3. Step 3: Cross multiply
   1,577.78x = 2,366.69 × 482.15
4. Step 4: Simplify right side
   1,577.78x = 1,141,103.09
5. Step 5: Solve for x
   x = 1,141,103.09/1,577.78
6. Step 6: Final answer
   x = 723.23