Finding the Fourth Proportional to 2,471.39, 3,707.86 and 1,085.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,471.39 : 3,707.86 = 1,085.89 : x
2. Step 2: Convert to fraction form
   2,471.39/3,707.86 = 1,085.89/x
3. Step 3: Cross multiply
   2,471.39x = 3,707.86 × 1,085.89
4. Step 4: Simplify right side
   2,471.39x = 4,026,314.99
5. Step 5: Solve for x
   x = 4,026,314.99/2,471.39
6. Step 6: Final answer
   x = 1,629.17