Finding the Fourth Proportional to 3,637.73, 5,020.72 and 2,145.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,637.73 : 5,020.72 = 2,145.56 : x
2. Step 2: Convert to fraction form
   3,637.73/5,020.72 = 2,145.56/x
3. Step 3: Cross multiply
   3,637.73x = 5,020.72 × 2,145.56
4. Step 4: Simplify right side
   3,637.73x = 10,772,225.54
5. Step 5: Solve for x
   x = 10,772,225.54/3,637.73
6. Step 6: Final answer
   x = 2,961.25