Finding the Fourth Proportional to 2,847.55, 4,271.78 and 998.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,847.55 : 4,271.78 = 998.62 : x
2. Step 2: Convert to fraction form
   2,847.55/4,271.78 = 998.62/x
3. Step 3: Cross multiply
   2,847.55x = 4,271.78 × 998.62
4. Step 4: Simplify right side
   2,847.55x = 4,265,884.94
5. Step 5: Solve for x
   x = 4,265,884.94/2,847.55
6. Step 6: Final answer
   x = 1,498.09