Finding the Fourth Proportional to 2,407.38, 3,610.56 and 764.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407.38 : 3,610.56 = 764.07 : x
2. Step 2: Convert to fraction form
   2,407.38/3,610.56 = 764.07/x
3. Step 3: Cross multiply
   2,407.38x = 3,610.56 × 764.07
4. Step 4: Simplify right side
   2,407.38x = 2,758,720.58
5. Step 5: Solve for x
   x = 2,758,720.58/2,407.38
6. Step 6: Final answer
   x = 1,145.94