Finding the Fourth Proportional to 1,308.50, 1,963.56 and 760.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308.50 : 1,963.56 = 760.94 : x
2. Step 2: Convert to fraction form
   1,308.50/1,963.56 = 760.94/x
3. Step 3: Cross multiply
   1,308.50x = 1,963.56 × 760.94
4. Step 4: Simplify right side
   1,308.50x = 1,494,151.35
5. Step 5: Solve for x
   x = 1,494,151.35/1,308.50
6. Step 6: Final answer
   x = 1,141.88