Finding the Fourth Proportional to 1,243.37, 1,715.78 and 746.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243.37 : 1,715.78 = 746.29 : x
2. Step 2: Convert to fraction form
   1,243.37/1,715.78 = 746.29/x
3. Step 3: Cross multiply
   1,243.37x = 1,715.78 × 746.29
4. Step 4: Simplify right side
   1,243.37x = 1,280,457.15
5. Step 5: Solve for x
   x = 1,280,457.15/1,243.37
6. Step 6: Final answer
   x = 1,029.83