Finding the Fourth Proportional to 1,808.42, 2,714.16 and 1,289.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,808.42 : 2,714.16 = 1,289.69 : x
2. Step 2: Convert to fraction form
   1,808.42/2,714.16 = 1,289.69/x
3. Step 3: Cross multiply
   1,808.42x = 2,714.16 × 1,289.69
4. Step 4: Simplify right side
   1,808.42x = 3,500,411.44
5. Step 5: Solve for x
   x = 3,500,411.44/1,808.42
6. Step 6: Final answer
   x = 1,935.62