Finding the Fourth Proportional to 1,007.58, 1,510.02 and 357.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,007.58 : 1,510.02 = 357.69 : x
2. Step 2: Convert to fraction form
   1,007.58/1,510.02 = 357.69/x
3. Step 3: Cross multiply
   1,007.58x = 1,510.02 × 357.69
4. Step 4: Simplify right side
   1,007.58x = 540,119.05
5. Step 5: Solve for x
   x = 540,119.05/1,007.58
6. Step 6: Final answer
   x = 536.06