Finding the Fourth Proportional to 2,280.56, 3,419.76 and 981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.56 : 3,419.76 = 981.50 : x
2. Step 2: Convert to fraction form
   2,280.56/3,419.76 = 981.50/x
3. Step 3: Cross multiply
   2,280.56x = 3,419.76 × 981.50
4. Step 4: Simplify right side
   2,280.56x = 3,356,494.44
5. Step 5: Solve for x
   x = 3,356,494.44/2,280.56
6. Step 6: Final answer
   x = 1,471.79