Finding the Fourth Proportional to 2,085.46, 3,127.42 and 624.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.46 : 3,127.42 = 624.12 : x
2. Step 2: Convert to fraction form
   2,085.46/3,127.42 = 624.12/x
3. Step 3: Cross multiply
   2,085.46x = 3,127.42 × 624.12
4. Step 4: Simplify right side
   2,085.46x = 1,951,885.37
5. Step 5: Solve for x
   x = 1,951,885.37/2,085.46
6. Step 6: Final answer
   x = 935.95