Finding the Fourth Proportional to 1,379.69, 1,903.98 and 750.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,379.69 : 1,903.98 = 750.23 : x
2. Step 2: Convert to fraction form
   1,379.69/1,903.98 = 750.23/x
3. Step 3: Cross multiply
   1,379.69x = 1,903.98 × 750.23
4. Step 4: Simplify right side
   1,379.69x = 1,428,409.64
5. Step 5: Solve for x
   x = 1,428,409.64/1,379.69
6. Step 6: Final answer
   x = 1,035.32