Finding the Fourth Proportional to 1,317.00, 1,817.34 and 727.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,317.00 : 1,817.34 = 727.50 : x
2. Step 2: Convert to fraction form
   1,317.00/1,817.34 = 727.50/x
3. Step 3: Cross multiply
   1,317.00x = 1,817.34 × 727.50
4. Step 4: Simplify right side
   1,317.00x = 1,322,118.94
5. Step 5: Solve for x
   x = 1,322,118.94/1,317.00
6. Step 6: Final answer
   x = 1,003.88