Finding the Fourth Proportional to 2,111.02, 3,166.88 and 724.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.02 : 3,166.88 = 724.02 : x
2. Step 2: Convert to fraction form
   2,111.02/3,166.88 = 724.02/x
3. Step 3: Cross multiply
   2,111.02x = 3,166.88 × 724.02
4. Step 4: Simplify right side
   2,111.02x = 2,292,884.46
5. Step 5: Solve for x
   x = 2,292,884.46/2,111.02
6. Step 6: Final answer
   x = 1,086.15