Finding the Fourth Proportional to 1,471.32, 2,030.43 and 808.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,471.32 : 2,030.43 = 808.15 : x
2. Step 2: Convert to fraction form
   1,471.32/2,030.43 = 808.15/x
3. Step 3: Cross multiply
   1,471.32x = 2,030.43 × 808.15
4. Step 4: Simplify right side
   1,471.32x = 1,640,892.00
5. Step 5: Solve for x
   x = 1,640,892.00/1,471.32
6. Step 6: Final answer
   x = 1,115.25