Finding the Fourth Proportional to 2,636.48, 3,954.82 and 787.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.48 : 3,954.82 = 787.62 : x
2. Step 2: Convert to fraction form
   2,636.48/3,954.82 = 787.62/x
3. Step 3: Cross multiply
   2,636.48x = 3,954.82 × 787.62
4. Step 4: Simplify right side
   2,636.48x = 3,114,895.33
5. Step 5: Solve for x
   x = 3,114,895.33/2,636.48
6. Step 6: Final answer
   x = 1,181.46