Finding the Fourth Proportional to 1,471.58, 2,030.78 and 808.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,471.58 : 2,030.78 = 808.42 : x
2. Step 2: Convert to fraction form
   1,471.58/2,030.78 = 808.42/x
3. Step 3: Cross multiply
   1,471.58x = 2,030.78 × 808.42
4. Step 4: Simplify right side
   1,471.58x = 1,641,723.17
5. Step 5: Solve for x
   x = 1,641,723.17/1,471.58
6. Step 6: Final answer
   x = 1,115.62