Finding the Fourth Proportional to 1,437.42, 1,983.60 and 808.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.42 : 1,983.60 = 808.02 : x
2. Step 2: Convert to fraction form
   1,437.42/1,983.60 = 808.02/x
3. Step 3: Cross multiply
   1,437.42x = 1,983.60 × 808.02
4. Step 4: Simplify right side
   1,437.42x = 1,602,788.47
5. Step 5: Solve for x
   x = 1,602,788.47/1,437.42
6. Step 6: Final answer
   x = 1,115.05