Finding the Fourth Proportional to 1,437.72, 1,984.22 and 808.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.72 : 1,984.22 = 808.27 : x
2. Step 2: Convert to fraction form
   1,437.72/1,984.22 = 808.27/x
3. Step 3: Cross multiply
   1,437.72x = 1,984.22 × 808.27
4. Step 4: Simplify right side
   1,437.72x = 1,603,785.50
5. Step 5: Solve for x
   x = 1,603,785.50/1,437.72
6. Step 6: Final answer
   x = 1,115.51