Finding the Fourth Proportional to 1,971.53, 2,720.56 and 1,087.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,971.53 : 2,720.56 = 1,087.33 : x
2. Step 2: Convert to fraction form
   1,971.53/2,720.56 = 1,087.33/x
3. Step 3: Cross multiply
   1,971.53x = 2,720.56 × 1,087.33
4. Step 4: Simplify right side
   1,971.53x = 2,958,146.50
5. Step 5: Solve for x
   x = 2,958,146.50/1,971.53
6. Step 6: Final answer
   x = 1,500.43