Finding the Fourth Proportional to 2,279.35, 3,419.84 and 981.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,279.35 : 3,419.84 = 981.73 : x
2. Step 2: Convert to fraction form
   2,279.35/3,419.84 = 981.73/x
3. Step 3: Cross multiply
   2,279.35x = 3,419.84 × 981.73
4. Step 4: Simplify right side
   2,279.35x = 3,357,359.52
5. Step 5: Solve for x
   x = 3,357,359.52/2,279.35
6. Step 6: Final answer
   x = 1,472.95