Finding the Fourth Proportional to 3,446.99, 5,170.56 and 981.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,446.99 : 5,170.56 = 981.89 : x
2. Step 2: Convert to fraction form
   3,446.99/5,170.56 = 981.89/x
3. Step 3: Cross multiply
   3,446.99x = 5,170.56 × 981.89
4. Step 4: Simplify right side
   3,446.99x = 5,076,921.16
5. Step 5: Solve for x
   x = 5,076,921.16/3,446.99
6. Step 6: Final answer
   x = 1,472.86