Finding the Fourth Proportional to 2,384.91, 3,576.67 and 923.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,384.91 : 3,576.67 = 923.72 : x
2. Step 2: Convert to fraction form
   2,384.91/3,576.67 = 923.72/x
3. Step 3: Cross multiply
   2,384.91x = 3,576.67 × 923.72
4. Step 4: Simplify right side
   2,384.91x = 3,303,841.61
5. Step 5: Solve for x
   x = 3,303,841.61/2,384.91
6. Step 6: Final answer
   x = 1,385.31