Finding the Fourth Proportional to 1,581.03, 2,369.25 and 1,086.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,581.03 : 2,369.25 = 1,086.93 : x
2. Step 2: Convert to fraction form
   1,581.03/2,369.25 = 1,086.93/x
3. Step 3: Cross multiply
   1,581.03x = 2,369.25 × 1,086.93
4. Step 4: Simplify right side
   1,581.03x = 2,575,208.90
5. Step 5: Solve for x
   x = 2,575,208.90/1,581.03
6. Step 6: Final answer
   x = 1,628.82