Finding the Fourth Proportional to 1,173.69, 1,760.50 and 308.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,173.69 : 1,760.50 = 308.00 : x
2. Step 2: Convert to fraction form
   1,173.69/1,760.50 = 308.00/x
3. Step 3: Cross multiply
   1,173.69x = 1,760.50 × 308.00
4. Step 4: Simplify right side
   1,173.69x = 542,238.79
5. Step 5: Solve for x
   x = 542,238.79/1,173.69
6. Step 6: Final answer
   x = 461.99