Finding the Fourth Proportional to 3,905.55, 5,388.71 and 2,413.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,905.55 : 5,388.71 = 2,413.53 : x
2. Step 2: Convert to fraction form
   3,905.55/5,388.71 = 2,413.53/x
3. Step 3: Cross multiply
   3,905.55x = 5,388.71 × 2,413.53
4. Step 4: Simplify right side
   3,905.55x = 13,005,801.18
5. Step 5: Solve for x
   x = 13,005,801.18/3,905.55
6. Step 6: Final answer
   x = 3,330.08