Finding the Fourth Proportional to 1,782.67, 2,672.86 and 743.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,782.67 : 2,672.86 = 743.40 : x
2. Step 2: Convert to fraction form
   1,782.67/2,672.86 = 743.40/x
3. Step 3: Cross multiply
   1,782.67x = 2,672.86 × 743.40
4. Step 4: Simplify right side
   1,782.67x = 1,987,004.12
5. Step 5: Solve for x
   x = 1,987,004.12/1,782.67
6. Step 6: Final answer
   x = 1,114.62