Finding the Fourth Proportional to 1,630.18, 2,443.56 and 807.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,630.18 : 2,443.56 = 807.94 : x
2. Step 2: Convert to fraction form
   1,630.18/2,443.56 = 807.94/x
3. Step 3: Cross multiply
   1,630.18x = 2,443.56 × 807.94
4. Step 4: Simplify right side
   1,630.18x = 1,974,249.87
5. Step 5: Solve for x
   x = 1,974,249.87/1,630.18
6. Step 6: Final answer
   x = 1,211.06