Finding the Fourth Proportional to 1,972.15, 2,721.59 and 1,087.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,972.15 : 2,721.59 = 1,087.93 : x
2. Step 2: Convert to fraction form
   1,972.15/2,721.59 = 1,087.93/x
3. Step 3: Cross multiply
   1,972.15x = 2,721.59 × 1,087.93
4. Step 4: Simplify right side
   1,972.15x = 2,960,899.41
5. Step 5: Solve for x
   x = 2,960,899.41/1,972.15
6. Step 6: Final answer
   x = 1,501.36