Finding the Fourth Proportional to 1,921.22, 2,648.50 and 1,654.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921.22 : 2,648.50 = 1,654.51 : x
2. Step 2: Convert to fraction form
   1,921.22/2,648.50 = 1,654.51/x
3. Step 3: Cross multiply
   1,921.22x = 2,648.50 × 1,654.51
4. Step 4: Simplify right side
   1,921.22x = 4,381,961.46
5. Step 5: Solve for x
   x = 4,381,961.46/1,921.22
6. Step 6: Final answer
   x = 2,280.82