Finding the Fourth Proportional to 2,407.45, 3,610.45 and 1,020.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407.45 : 3,610.45 = 1,020.76 : x
2. Step 2: Convert to fraction form
   2,407.45/3,610.45 = 1,020.76/x
3. Step 3: Cross multiply
   2,407.45x = 3,610.45 × 1,020.76
4. Step 4: Simplify right side
   2,407.45x = 3,685,405.49
5. Step 5: Solve for x
   x = 3,685,405.49/2,407.45
6. Step 6: Final answer
   x = 1,530.84