Finding the Fourth Proportional to 1,641.33, 2,461.73 and 716.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.33 : 2,461.73 = 716.72 : x
2. Step 2: Convert to fraction form
   1,641.33/2,461.73 = 716.72/x
3. Step 3: Cross multiply
   1,641.33x = 2,461.73 × 716.72
4. Step 4: Simplify right side
   1,641.33x = 1,764,355.23
5. Step 5: Solve for x
   x = 1,764,355.23/1,641.33
6. Step 6: Final answer
   x = 1,074.95