Finding the Fourth Proportional to 2,384.55, 3,578.13 and 923.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,384.55 : 3,578.13 = 923.76 : x
2. Step 2: Convert to fraction form
   2,384.55/3,578.13 = 923.76/x
3. Step 3: Cross multiply
   2,384.55x = 3,578.13 × 923.76
4. Step 4: Simplify right side
   2,384.55x = 3,305,333.37
5. Step 5: Solve for x
   x = 3,305,333.37/2,384.55
6. Step 6: Final answer
   x = 1,386.15