Finding the Fourth Proportional to 2,383.74, 3,287.54 and 1,787.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,383.74 : 3,287.54 = 1,787.63 : x
2. Step 2: Convert to fraction form
   2,383.74/3,287.54 = 1,787.63/x
3. Step 3: Cross multiply
   2,383.74x = 3,287.54 × 1,787.63
4. Step 4: Simplify right side
   2,383.74x = 5,876,893.16
5. Step 5: Solve for x
   x = 5,876,893.16/2,383.74
6. Step 6: Final answer
   x = 2,465.41