Finding the Fourth Proportional to 2,404.78, 3,606.58 and 923.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,404.78 : 3,606.58 = 923.70 : x
2. Step 2: Convert to fraction form
   2,404.78/3,606.58 = 923.70/x
3. Step 3: Cross multiply
   2,404.78x = 3,606.58 × 923.70
4. Step 4: Simplify right side
   2,404.78x = 3,331,397.95
5. Step 5: Solve for x
   x = 3,331,397.95/2,404.78
6. Step 6: Final answer
   x = 1,385.32