Finding the Fourth Proportional to 2,487.30, 3,732.06 and 1,026.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,487.30 : 3,732.06 = 1,026.78 : x
2. Step 2: Convert to fraction form
   2,487.30/3,732.06 = 1,026.78/x
3. Step 3: Cross multiply
   2,487.30x = 3,732.06 × 1,026.78
4. Step 4: Simplify right side
   2,487.30x = 3,832,004.57
5. Step 5: Solve for x
   x = 3,832,004.57/2,487.30
6. Step 6: Final answer
   x = 1,540.63