Finding the Fourth Proportional to 2,624.17, 3,938.52 and 1,392.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.17 : 3,938.52 = 1,392.46 : x
2. Step 2: Convert to fraction form
   2,624.17/3,938.52 = 1,392.46/x
3. Step 3: Cross multiply
   2,624.17x = 3,938.52 × 1,392.46
4. Step 4: Simplify right side
   2,624.17x = 5,484,231.56
5. Step 5: Solve for x
   x = 5,484,231.56/2,624.17
6. Step 6: Final answer
   x = 2,089.89