Finding the Fourth Proportional to 1,787.05, 2,665.18 and 1,612.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,787.05 : 2,665.18 = 1,612.09 : x
2. Step 2: Convert to fraction form
   1,787.05/2,665.18 = 1,612.09/x
3. Step 3: Cross multiply
   1,787.05x = 2,665.18 × 1,612.09
4. Step 4: Simplify right side
   1,787.05x = 4,296,510.03
5. Step 5: Solve for x
   x = 4,296,510.03/1,787.05
6. Step 6: Final answer
   x = 2,404.25