Finding the Fourth Proportional to 2,141.98, 3,214.59 and 988.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141.98 : 3,214.59 = 988.54 : x
2. Step 2: Convert to fraction form
   2,141.98/3,214.59 = 988.54/x
3. Step 3: Cross multiply
   2,141.98x = 3,214.59 × 988.54
4. Step 4: Simplify right side
   2,141.98x = 3,177,750.80
5. Step 5: Solve for x
   x = 3,177,750.80/2,141.98
6. Step 6: Final answer
   x = 1,483.56