Finding the Fourth Proportional to 1,321.14, 1,822.83 and 761.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,321.14 : 1,822.83 = 761.48 : x
2. Step 2: Convert to fraction form
   1,321.14/1,822.83 = 761.48/x
3. Step 3: Cross multiply
   1,321.14x = 1,822.83 × 761.48
4. Step 4: Simplify right side
   1,321.14x = 1,388,048.59
5. Step 5: Solve for x
   x = 1,388,048.59/1,321.14
6. Step 6: Final answer
   x = 1,050.64