Finding the Fourth Proportional to 1,799.30, 2,699.27 and 825.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,799.30 : 2,699.27 = 825.50 : x
2. Step 2: Convert to fraction form
   1,799.30/2,699.27 = 825.50/x
3. Step 3: Cross multiply
   1,799.30x = 2,699.27 × 825.50
4. Step 4: Simplify right side
   1,799.30x = 2,228,253.10
5. Step 5: Solve for x
   x = 2,228,253.10/1,799.30
6. Step 6: Final answer
   x = 1,238.40