Finding the Fourth Proportional to 1,305.48, 1,801.59 and 716.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,305.48 : 1,801.59 = 716.04 : x
2. Step 2: Convert to fraction form
   1,305.48/1,801.59 = 716.04/x
3. Step 3: Cross multiply
   1,305.48x = 1,801.59 × 716.04
4. Step 4: Simplify right side
   1,305.48x = 1,290,010.50
5. Step 5: Solve for x
   x = 1,290,010.50/1,305.48
6. Step 6: Final answer
   x = 988.15