Finding the Fourth Proportional to 2,084.96, 3,128.25 and 787.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084.96 : 3,128.25 = 787.34 : x
2. Step 2: Convert to fraction form
   2,084.96/3,128.25 = 787.34/x
3. Step 3: Cross multiply
   2,084.96x = 3,128.25 × 787.34
4. Step 4: Simplify right side
   2,084.96x = 2,462,996.36
5. Step 5: Solve for x
   x = 2,462,996.36/2,084.96
6. Step 6: Final answer
   x = 1,181.32