Finding the Fourth Proportional to 1,131.50, 1,563.42 and 934.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.50 : 1,563.42 = 934.68 : x
2. Step 2: Convert to fraction form
   1,131.50/1,563.42 = 934.68/x
3. Step 3: Cross multiply
   1,131.50x = 1,563.42 × 934.68
4. Step 4: Simplify right side
   1,131.50x = 1,461,297.41
5. Step 5: Solve for x
   x = 1,461,297.41/1,131.50
6. Step 6: Final answer
   x = 1,291.47