Finding the Fourth Proportional to 1,292.72, 1,783.86 and 733.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,292.72 : 1,783.86 = 733.16 : x
2. Step 2: Convert to fraction form
   1,292.72/1,783.86 = 733.16/x
3. Step 3: Cross multiply
   1,292.72x = 1,783.86 × 733.16
4. Step 4: Simplify right side
   1,292.72x = 1,307,854.80
5. Step 5: Solve for x
   x = 1,307,854.80/1,292.72
6. Step 6: Final answer
   x = 1,011.71