Finding the Fourth Proportional to 3,451.06, 5,176.81 and 985.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,451.06 : 5,176.81 = 985.82 : x
2. Step 2: Convert to fraction form
   3,451.06/5,176.81 = 985.82/x
3. Step 3: Cross multiply
   3,451.06x = 5,176.81 × 985.82
4. Step 4: Simplify right side
   3,451.06x = 5,103,407.30
5. Step 5: Solve for x
   x = 5,103,407.30/3,451.06
6. Step 6: Final answer
   x = 1,478.80