Finding the Fourth Proportional to 3,111.48, 4,295.16 and 2,117.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.48 : 4,295.16 = 2,117.52 : x
2. Step 2: Convert to fraction form
   3,111.48/4,295.16 = 2,117.52/x
3. Step 3: Cross multiply
   3,111.48x = 4,295.16 × 2,117.52
4. Step 4: Simplify right side
   3,111.48x = 9,095,087.20
5. Step 5: Solve for x
   x = 9,095,087.20/3,111.48
6. Step 6: Final answer
   x = 2,923.07