Finding the Fourth Proportional to 1,972.38, 2,721.69 and 1,087.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,972.38 : 2,721.69 = 1,087.98 : x
2. Step 2: Convert to fraction form
   1,972.38/2,721.69 = 1,087.98/x
3. Step 3: Cross multiply
   1,972.38x = 2,721.69 × 1,087.98
4. Step 4: Simplify right side
   1,972.38x = 2,961,144.29
5. Step 5: Solve for x
   x = 2,961,144.29/1,972.38
6. Step 6: Final answer
   x = 1,501.31