Finding the Fourth Proportional to 3,605.58, 5,408.46 and 1,008.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,605.58 : 5,408.46 = 1,008.72 : x
2. Step 2: Convert to fraction form
   3,605.58/5,408.46 = 1,008.72/x
3. Step 3: Cross multiply
   3,605.58x = 5,408.46 × 1,008.72
4. Step 4: Simplify right side
   3,605.58x = 5,455,621.77
5. Step 5: Solve for x
   x = 5,455,621.77/3,605.58
6. Step 6: Final answer
   x = 1,513.11