Finding the Fourth Proportional to 1,437.47, 1,983.81 and 808.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.47 : 1,983.81 = 808.04 : x
2. Step 2: Convert to fraction form
   1,437.47/1,983.81 = 808.04/x
3. Step 3: Cross multiply
   1,437.47x = 1,983.81 × 808.04
4. Step 4: Simplify right side
   1,437.47x = 1,602,987.91
5. Step 5: Solve for x
   x = 1,602,987.91/1,437.47
6. Step 6: Final answer
   x = 1,115.15