Finding the Fourth Proportional to 1,471.25, 2,030.38 and 808.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,471.25 : 2,030.38 = 808.10 : x
2. Step 2: Convert to fraction form
   1,471.25/2,030.38 = 808.10/x
3. Step 3: Cross multiply
   1,471.25x = 2,030.38 × 808.10
4. Step 4: Simplify right side
   1,471.25x = 1,640,737.91
5. Step 5: Solve for x
   x = 1,640,737.91/1,471.25
6. Step 6: Final answer
   x = 1,115.20