Finding the Fourth Proportional to 2,430.58, 3,645.57 and 675.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,430.58 : 3,645.57 = 675.72 : x
2. Step 2: Convert to fraction form
   2,430.58/3,645.57 = 675.72/x
3. Step 3: Cross multiply
   2,430.58x = 3,645.57 × 675.72
4. Step 4: Simplify right side
   2,430.58x = 2,463,384.56
5. Step 5: Solve for x
   x = 2,463,384.56/2,430.58
6. Step 6: Final answer
   x = 1,013.50