Finding the Fourth Proportional to 2,572.38, 3,858.55 and 624.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572.38 : 3,858.55 = 624.59 : x
2. Step 2: Convert to fraction form
   2,572.38/3,858.55 = 624.59/x
3. Step 3: Cross multiply
   2,572.38x = 3,858.55 × 624.59
4. Step 4: Simplify right side
   2,572.38x = 2,410,005.36
5. Step 5: Solve for x
   x = 2,410,005.36/2,572.38
6. Step 6: Final answer
   x = 936.88