Finding the Fourth Proportional to 2,830.50, 4,244.72 and 981.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830.50 : 4,244.72 = 981.12 : x
2. Step 2: Convert to fraction form
   2,830.50/4,244.72 = 981.12/x
3. Step 3: Cross multiply
   2,830.50x = 4,244.72 × 981.12
4. Step 4: Simplify right side
   2,830.50x = 4,164,579.69
5. Step 5: Solve for x
   x = 4,164,579.69/2,830.50
6. Step 6: Final answer
   x = 1,471.32