Finding the Fourth Proportional to 1,437.31, 1,983.65 and 808.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.31 : 1,983.65 = 808.01 : x
2. Step 2: Convert to fraction form
   1,437.31/1,983.65 = 808.01/x
3. Step 3: Cross multiply
   1,437.31x = 1,983.65 × 808.01
4. Step 4: Simplify right side
   1,437.31x = 1,602,802.52
5. Step 5: Solve for x
   x = 1,602,802.52/1,437.31
6. Step 6: Final answer
   x = 1,115.14