Finding the Fourth Proportional to 1,050.77, 1,450.17 and 788.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.77 : 1,450.17 = 788.33 : x
2. Step 2: Convert to fraction form
   1,050.77/1,450.17 = 788.33/x
3. Step 3: Cross multiply
   1,050.77x = 1,450.17 × 788.33
4. Step 4: Simplify right side
   1,050.77x = 1,143,219.10
5. Step 5: Solve for x
   x = 1,143,219.10/1,050.77
6. Step 6: Final answer
   x = 1,087.98