Finding the Fourth Proportional to 2,086.72, 3,131.04 and 1,061.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.72 : 3,131.04 = 1,061.44 : x
2. Step 2: Convert to fraction form
   2,086.72/3,131.04 = 1,061.44/x
3. Step 3: Cross multiply
   2,086.72x = 3,131.04 × 1,061.44
4. Step 4: Simplify right side
   2,086.72x = 3,323,411.10
5. Step 5: Solve for x
   x = 3,323,411.10/2,086.72
6. Step 6: Final answer
   x = 1,592.65