Finding the Fourth Proportional to 1,821.17, 2,727.27 and 1,039.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,821.17 : 2,727.27 = 1,039.25 : x
2. Step 2: Convert to fraction form
   1,821.17/2,727.27 = 1,039.25/x
3. Step 3: Cross multiply
   1,821.17x = 2,727.27 × 1,039.25
4. Step 4: Simplify right side
   1,821.17x = 2,834,301.71
5. Step 5: Solve for x
   x = 2,834,301.71/1,821.17
6. Step 6: Final answer
   x = 1,556.31