Finding the Fourth Proportional to 1,096.07, 1,641.69 and 788.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.07 : 1,641.69 = 788.51 : x
2. Step 2: Convert to fraction form
   1,096.07/1,641.69 = 788.51/x
3. Step 3: Cross multiply
   1,096.07x = 1,641.69 × 788.51
4. Step 4: Simplify right side
   1,096.07x = 1,294,493.09
5. Step 5: Solve for x
   x = 1,294,493.09/1,096.07
6. Step 6: Final answer
   x = 1,181.04