Finding the Fourth Proportional to 1,631.39, 2,443.14 and 808.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,631.39 : 2,443.14 = 808.52 : x
2. Step 2: Convert to fraction form
   1,631.39/2,443.14 = 808.52/x
3. Step 3: Cross multiply
   1,631.39x = 2,443.14 × 808.52
4. Step 4: Simplify right side
   1,631.39x = 1,975,315.34
5. Step 5: Solve for x
   x = 1,975,315.34/1,631.39
6. Step 6: Final answer
   x = 1,210.82