Finding the Fourth Proportional to 1,996.58, 2,735.32 and 1,921.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,996.58 : 2,735.32 = 1,921.76 : x
2. Step 2: Convert to fraction form
   1,996.58/2,735.32 = 1,921.76/x
3. Step 3: Cross multiply
   1,996.58x = 2,735.32 × 1,921.76
4. Step 4: Simplify right side
   1,996.58x = 5,256,614.89
5. Step 5: Solve for x
   x = 5,256,614.89/1,996.58
6. Step 6: Final answer
   x = 2,632.82