Finding the Fourth Proportional to 2,567.90, 3,850.86 and 923.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,567.90 : 3,850.86 = 923.96 : x
2. Step 2: Convert to fraction form
   2,567.90/3,850.86 = 923.96/x
3. Step 3: Cross multiply
   2,567.90x = 3,850.86 × 923.96
4. Step 4: Simplify right side
   2,567.90x = 3,558,040.61
5. Step 5: Solve for x
   x = 3,558,040.61/2,567.90
6. Step 6: Final answer
   x = 1,385.58