Finding the Fourth Proportional to 2,007.30, 3,009.13 and 775.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.30 : 3,009.13 = 775.53 : x
2. Step 2: Convert to fraction form
   2,007.30/3,009.13 = 775.53/x
3. Step 3: Cross multiply
   2,007.30x = 3,009.13 × 775.53
4. Step 4: Simplify right side
   2,007.30x = 2,333,670.59
5. Step 5: Solve for x
   x = 2,333,670.59/2,007.30
6. Step 6: Final answer
   x = 1,162.59