Finding the Fourth Proportional to 3,111.16, 4,292.03 and 2,047.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.16 : 4,292.03 = 2,047.55 : x
2. Step 2: Convert to fraction form
   3,111.16/4,292.03 = 2,047.55/x
3. Step 3: Cross multiply
   3,111.16x = 4,292.03 × 2,047.55
4. Step 4: Simplify right side
   3,111.16x = 8,788,161.88
5. Step 5: Solve for x
   x = 8,788,161.88/3,111.16
6. Step 6: Final answer
   x = 2,824.72