Finding the Fourth Proportional to 2,408.57, 3,613.28 and 848.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,408.57 : 3,613.28 = 848.45 : x
2. Step 2: Convert to fraction form
   2,408.57/3,613.28 = 848.45/x
3. Step 3: Cross multiply
   2,408.57x = 3,613.28 × 848.45
4. Step 4: Simplify right side
   2,408.57x = 3,065,683.17
5. Step 5: Solve for x
   x = 3,065,683.17/2,408.57
6. Step 6: Final answer
   x = 1,272.82