Finding the Fourth Proportional to 1,437.46, 1,983.78 and 808.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.46 : 1,983.78 = 808.06 : x
2. Step 2: Convert to fraction form
   1,437.46/1,983.78 = 808.06/x
3. Step 3: Cross multiply
   1,437.46x = 1,983.78 × 808.06
4. Step 4: Simplify right side
   1,437.46x = 1,603,013.27
5. Step 5: Solve for x
   x = 1,603,013.27/1,437.46
6. Step 6: Final answer
   x = 1,115.17