Finding the Fourth Proportional to 2,488.05, 3,729.36 and 1,026.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.05 : 3,729.36 = 1,026.81 : x
2. Step 2: Convert to fraction form
   2,488.05/3,729.36 = 1,026.81/x
3. Step 3: Cross multiply
   2,488.05x = 3,729.36 × 1,026.81
4. Step 4: Simplify right side
   2,488.05x = 3,829,344.14
5. Step 5: Solve for x
   x = 3,829,344.14/2,488.05
6. Step 6: Final answer
   x = 1,539.09