Finding the Fourth Proportional to 2,108.48, 3,162.46 and 938.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.48 : 3,162.46 = 938.50 : x
2. Step 2: Convert to fraction form
   2,108.48/3,162.46 = 938.50/x
3. Step 3: Cross multiply
   2,108.48x = 3,162.46 × 938.50
4. Step 4: Simplify right side
   2,108.48x = 2,967,968.71
5. Step 5: Solve for x
   x = 2,967,968.71/2,108.48
6. Step 6: Final answer
   x = 1,407.63