Finding the Fourth Proportional to 1,969.83, 2,718.54 and 1,085.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,969.83 : 2,718.54 = 1,085.81 : x
2. Step 2: Convert to fraction form
   1,969.83/2,718.54 = 1,085.81/x
3. Step 3: Cross multiply
   1,969.83x = 2,718.54 × 1,085.81
4. Step 4: Simplify right side
   1,969.83x = 2,951,804.32
5. Step 5: Solve for x
   x = 2,951,804.32/1,969.83
6. Step 6: Final answer
   x = 1,498.51