Finding the Fourth Proportional to 1,340.86, 1,850.45 and 743.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340.86 : 1,850.45 = 743.41 : x
2. Step 2: Convert to fraction form
   1,340.86/1,850.45 = 743.41/x
3. Step 3: Cross multiply
   1,340.86x = 1,850.45 × 743.41
4. Step 4: Simplify right side
   1,340.86x = 1,375,637.73
5. Step 5: Solve for x
   x = 1,375,637.73/1,340.86
6. Step 6: Final answer
   x = 1,025.94