Finding the Fourth Proportional to 2,637.72, 3,640.20 and 1,458.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,637.72 : 3,640.20 = 1,458.76 : x
2. Step 2: Convert to fraction form
   2,637.72/3,640.20 = 1,458.76/x
3. Step 3: Cross multiply
   2,637.72x = 3,640.20 × 1,458.76
4. Step 4: Simplify right side
   2,637.72x = 5,310,178.15
5. Step 5: Solve for x
   x = 5,310,178.15/2,637.72
6. Step 6: Final answer
   x = 2,013.17