Finding the Fourth Proportional to 1,809.42, 2,709.24 and 1,158.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,809.42 : 2,709.24 = 1,158.18 : x
2. Step 2: Convert to fraction form
   1,809.42/2,709.24 = 1,158.18/x
3. Step 3: Cross multiply
   1,809.42x = 2,709.24 × 1,158.18
4. Step 4: Simplify right side
   1,809.42x = 3,137,787.58
5. Step 5: Solve for x
   x = 3,137,787.58/1,809.42
6. Step 6: Final answer
   x = 1,734.14