Finding the Fourth Proportional to 3,985.07, 5,499.90 and 2,413.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,985.07 : 5,499.90 = 2,413.16 : x
2. Step 2: Convert to fraction form
   3,985.07/5,499.90 = 2,413.16/x
3. Step 3: Cross multiply
   3,985.07x = 5,499.90 × 2,413.16
4. Step 4: Simplify right side
   3,985.07x = 13,272,131.81
5. Step 5: Solve for x
   x = 13,272,131.81/3,985.07
6. Step 6: Final answer
   x = 3,330.47