Finding the Fourth Proportional to 1,822.71, 2,735.69 and 729.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822.71 : 2,735.69 = 729.21 : x
2. Step 2: Convert to fraction form
   1,822.71/2,735.69 = 729.21/x
3. Step 3: Cross multiply
   1,822.71x = 2,735.69 × 729.21
4. Step 4: Simplify right side
   1,822.71x = 1,994,888.86
5. Step 5: Solve for x
   x = 1,994,888.86/1,822.71
6. Step 6: Final answer
   x = 1,094.46