Finding the Fourth Proportional to 1,263.50, 1,743.12 and 932.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,263.50 : 1,743.12 = 932.72 : x
2. Step 2: Convert to fraction form
   1,263.50/1,743.12 = 932.72/x
3. Step 3: Cross multiply
   1,263.50x = 1,743.12 × 932.72
4. Step 4: Simplify right side
   1,263.50x = 1,625,842.89
5. Step 5: Solve for x
   x = 1,625,842.89/1,263.50
6. Step 6: Final answer
   x = 1,286.78