Finding the Fourth Proportional to 2,743.98, 4,116.30 and 988.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,743.98 : 4,116.30 = 988.71 : x
2. Step 2: Convert to fraction form
   2,743.98/4,116.30 = 988.71/x
3. Step 3: Cross multiply
   2,743.98x = 4,116.30 × 988.71
4. Step 4: Simplify right side
   2,743.98x = 4,069,826.97
5. Step 5: Solve for x
   x = 4,069,826.97/2,743.98
6. Step 6: Final answer
   x = 1,483.18