Finding the Fourth Proportional to 1,622.00, 2,431.49 and 788.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,622.00 : 2,431.49 = 788.88 : x
2. Step 2: Convert to fraction form
   1,622.00/2,431.49 = 788.88/x
3. Step 3: Cross multiply
   1,622.00x = 2,431.49 × 788.88
4. Step 4: Simplify right side
   1,622.00x = 1,918,149.89
5. Step 5: Solve for x
   x = 1,918,149.89/1,622.00
6. Step 6: Final answer
   x = 1,182.59