Finding the Fourth Proportional to 1,437.42, 1,983.46 and 807.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.42 : 1,983.46 = 807.81 : x
2. Step 2: Convert to fraction form
   1,437.42/1,983.46 = 807.81/x
3. Step 3: Cross multiply
   1,437.42x = 1,983.46 × 807.81
4. Step 4: Simplify right side
   1,437.42x = 1,602,258.82
5. Step 5: Solve for x
   x = 1,602,258.82/1,437.42
6. Step 6: Final answer
   x = 1,114.68