Finding the Fourth Proportional to 1,727.34, 2,383.72 and 981.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,727.34 : 2,383.72 = 981.15 : x
2. Step 2: Convert to fraction form
   1,727.34/2,383.72 = 981.15/x
3. Step 3: Cross multiply
   1,727.34x = 2,383.72 × 981.15
4. Step 4: Simplify right side
   1,727.34x = 2,338,788.10
5. Step 5: Solve for x
   x = 2,338,788.10/1,727.34
6. Step 6: Final answer
   x = 1,353.98