Finding the Fourth Proportional to 1,727.74, 2,384.53 and 981.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,727.74 : 2,384.53 = 981.55 : x
2. Step 2: Convert to fraction form
   1,727.74/2,384.53 = 981.55/x
3. Step 3: Cross multiply
   1,727.74x = 2,384.53 × 981.55
4. Step 4: Simplify right side
   1,727.74x = 2,340,535.42
5. Step 5: Solve for x
   x = 2,340,535.42/1,727.74
6. Step 6: Final answer
   x = 1,354.68