Finding the Fourth Proportional to 1,409.22, 1,944.69 and 788.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.22 : 1,944.69 = 788.34 : x
2. Step 2: Convert to fraction form
   1,409.22/1,944.69 = 788.34/x
3. Step 3: Cross multiply
   1,409.22x = 1,944.69 × 788.34
4. Step 4: Simplify right side
   1,409.22x = 1,533,076.91
5. Step 5: Solve for x
   x = 1,533,076.91/1,409.22
6. Step 6: Final answer
   x = 1,087.89