Finding the Fourth Proportional to 1,501.71, 2,249.70 and 808.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.71 : 2,249.70 = 808.15 : x
2. Step 2: Convert to fraction form
   1,501.71/2,249.70 = 808.15/x
3. Step 3: Cross multiply
   1,501.71x = 2,249.70 × 808.15
4. Step 4: Simplify right side
   1,501.71x = 1,818,095.06
5. Step 5: Solve for x
   x = 1,818,095.06/1,501.71
6. Step 6: Final answer
   x = 1,210.68