Finding the Fourth Proportional to 2,383.98, 3,576.35 and 1,213.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,383.98 : 3,576.35 = 1,213.50 : x
2. Step 2: Convert to fraction form
   2,383.98/3,576.35 = 1,213.50/x
3. Step 3: Cross multiply
   2,383.98x = 3,576.35 × 1,213.50
4. Step 4: Simplify right side
   2,383.98x = 4,339,900.73
5. Step 5: Solve for x
   x = 4,339,900.73/2,383.98
6. Step 6: Final answer
   x = 1,820.44