Finding the Fourth Proportional to 2,076.50, 3,115.53 and 981.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.50 : 3,115.53 = 981.05 : x
2. Step 2: Convert to fraction form
   2,076.50/3,115.53 = 981.05/x
3. Step 3: Cross multiply
   2,076.50x = 3,115.53 × 981.05
4. Step 4: Simplify right side
   2,076.50x = 3,056,475.13
5. Step 5: Solve for x
   x = 3,056,475.13/2,076.50
6. Step 6: Final answer
   x = 1,471.93