Finding the Fourth Proportional to 2,935.68, 4,400.43 and 1,085.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,935.68 : 4,400.43 = 1,085.61 : x
2. Step 2: Convert to fraction form
   2,935.68/4,400.43 = 1,085.61/x
3. Step 3: Cross multiply
   2,935.68x = 4,400.43 × 1,085.61
4. Step 4: Simplify right side
   2,935.68x = 4,777,150.81
5. Step 5: Solve for x
   x = 4,777,150.81/2,935.68
6. Step 6: Final answer
   x = 1,627.27