Finding the Fourth Proportional to 2,572.37, 3,858.56 and 624.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572.37 : 3,858.56 = 624.57 : x
2. Step 2: Convert to fraction form
   2,572.37/3,858.56 = 624.57/x
3. Step 3: Cross multiply
   2,572.37x = 3,858.56 × 624.57
4. Step 4: Simplify right side
   2,572.37x = 2,409,940.82
5. Step 5: Solve for x
   x = 2,409,940.82/2,572.37
6. Step 6: Final answer
   x = 936.86