Finding the Fourth Proportional to 2,345.39, 3,236.61 and 1,413.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.39 : 3,236.61 = 1,413.89 : x
2. Step 2: Convert to fraction form
   2,345.39/3,236.61 = 1,413.89/x
3. Step 3: Cross multiply
   2,345.39x = 3,236.61 × 1,413.89
4. Step 4: Simplify right side
   2,345.39x = 4,576,210.51
5. Step 5: Solve for x
   x = 4,576,210.51/2,345.39
6. Step 6: Final answer
   x = 1,951.15