Finding the Fourth Proportional to 2,177.00, 2,997.42 and 1,921.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,177.00 : 2,997.42 = 1,921.22 : x
2. Step 2: Convert to fraction form
   2,177.00/2,997.42 = 1,921.22/x
3. Step 3: Cross multiply
   2,177.00x = 2,997.42 × 1,921.22
4. Step 4: Simplify right side
   2,177.00x = 5,758,712.33
5. Step 5: Solve for x
   x = 5,758,712.33/2,177.00
6. Step 6: Final answer
   x = 2,645.26