Finding the Fourth Proportional to 1,971.95, 2,721.15 and 1,087.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,971.95 : 2,721.15 = 1,087.56 : x
2. Step 2: Convert to fraction form
   1,971.95/2,721.15 = 1,087.56/x
3. Step 3: Cross multiply
   1,971.95x = 2,721.15 × 1,087.56
4. Step 4: Simplify right side
   1,971.95x = 2,959,413.89
5. Step 5: Solve for x
   x = 2,959,413.89/1,971.95
6. Step 6: Final answer
   x = 1,500.76