Finding the Fourth Proportional to 1,364.72, 1,883.31 and 743.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,364.72 : 1,883.31 = 743.72 : x
2. Step 2: Convert to fraction form
   1,364.72/1,883.31 = 743.72/x
3. Step 3: Cross multiply
   1,364.72x = 1,883.31 × 743.72
4. Step 4: Simplify right side
   1,364.72x = 1,400,655.75
5. Step 5: Solve for x
   x = 1,400,655.75/1,364.72
6. Step 6: Final answer
   x = 1,026.33