Finding the Fourth Proportional to 1,300.69, 1,950.91 and 531.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.69 : 1,950.91 = 531.13 : x
2. Step 2: Convert to fraction form
   1,300.69/1,950.91 = 531.13/x
3. Step 3: Cross multiply
   1,300.69x = 1,950.91 × 531.13
4. Step 4: Simplify right side
   1,300.69x = 1,036,186.83
5. Step 5: Solve for x
   x = 1,036,186.83/1,300.69
6. Step 6: Final answer
   x = 796.64