Finding the Fourth Proportional to 2,637.39, 3,639.69 and 1,458.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,637.39 : 3,639.69 = 1,458.57 : x
2. Step 2: Convert to fraction form
   2,637.39/3,639.69 = 1,458.57/x
3. Step 3: Cross multiply
   2,637.39x = 3,639.69 × 1,458.57
4. Step 4: Simplify right side
   2,637.39x = 5,308,742.64
5. Step 5: Solve for x
   x = 5,308,742.64/2,637.39
6. Step 6: Final answer
   x = 2,012.88