Finding the Fourth Proportional to 1,181.25, 1,630.17 and 788.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181.25 : 1,630.17 = 788.00 : x
2. Step 2: Convert to fraction form
   1,181.25/1,630.17 = 788.00/x
3. Step 3: Cross multiply
   1,181.25x = 1,630.17 × 788.00
4. Step 4: Simplify right side
   1,181.25x = 1,284,565.81
5. Step 5: Solve for x
   x = 1,284,565.81/1,181.25
6. Step 6: Final answer
   x = 1,087.46