Finding the Fourth Proportional to 2,406.02, 3,609.21 and 762.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.02 : 3,609.21 = 762.71 : x
2. Step 2: Convert to fraction form
   2,406.02/3,609.21 = 762.71/x
3. Step 3: Cross multiply
   2,406.02x = 3,609.21 × 762.71
4. Step 4: Simplify right side
   2,406.02x = 2,752,762.51
5. Step 5: Solve for x
   x = 2,752,762.51/2,406.02
6. Step 6: Final answer
   x = 1,144.12