Finding the Fourth Proportional to 2,111.85, 3,167.63 and 725.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.85 : 3,167.63 = 725.04 : x
2. Step 2: Convert to fraction form
   2,111.85/3,167.63 = 725.04/x
3. Step 3: Cross multiply
   2,111.85x = 3,167.63 × 725.04
4. Step 4: Simplify right side
   2,111.85x = 2,296,654.83
5. Step 5: Solve for x
   x = 2,296,654.83/2,111.85
6. Step 6: Final answer
   x = 1,087.51