Finding the Fourth Proportional to 2,543.98, 3,815.86 and 984.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.98 : 3,815.86 = 984.38 : x
2. Step 2: Convert to fraction form
   2,543.98/3,815.86 = 984.38/x
3. Step 3: Cross multiply
   2,543.98x = 3,815.86 × 984.38
4. Step 4: Simplify right side
   2,543.98x = 3,756,247.30
5. Step 5: Solve for x
   x = 3,756,247.30/2,543.98
6. Step 6: Final answer
   x = 1,476.52