Finding the Fourth Proportional to 1,262.54, 1,742.78 and 933.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,262.54 : 1,742.78 = 933.62 : x
2. Step 2: Convert to fraction form
   1,262.54/1,742.78 = 933.62/x
3. Step 3: Cross multiply
   1,262.54x = 1,742.78 × 933.62
4. Step 4: Simplify right side
   1,262.54x = 1,627,087.88
5. Step 5: Solve for x
   x = 1,627,087.88/1,262.54
6. Step 6: Final answer
   x = 1,288.74