Finding the Fourth Proportional to 2,191.76, 3,022.77 and 1,973.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.76 : 3,022.77 = 1,973.06 : x
2. Step 2: Convert to fraction form
   2,191.76/3,022.77 = 1,973.06/x
3. Step 3: Cross multiply
   2,191.76x = 3,022.77 × 1,973.06
4. Step 4: Simplify right side
   2,191.76x = 5,964,099.10
5. Step 5: Solve for x
   x = 5,964,099.10/2,191.76
6. Step 6: Final answer
   x = 2,721.15