Finding the Fourth Proportional to 3,646.72, 5,032.32 and 2,154.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,646.72 : 5,032.32 = 2,154.56 : x
2. Step 2: Convert to fraction form
   3,646.72/5,032.32 = 2,154.56/x
3. Step 3: Cross multiply
   3,646.72x = 5,032.32 × 2,154.56
4. Step 4: Simplify right side
   3,646.72x = 10,842,435.38
5. Step 5: Solve for x
   x = 10,842,435.38/3,646.72
6. Step 6: Final answer
   x = 2,973.20