Finding the Fourth Proportional to 1,505.91, 2,260.71 and 716.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,505.91 : 2,260.71 = 716.03 : x
2. Step 2: Convert to fraction form
   1,505.91/2,260.71 = 716.03/x
3. Step 3: Cross multiply
   1,505.91x = 2,260.71 × 716.03
4. Step 4: Simplify right side
   1,505.91x = 1,618,724.88
5. Step 5: Solve for x
   x = 1,618,724.88/1,505.91
6. Step 6: Final answer
   x = 1,074.91