Finding the Fourth Proportional to 1,321.34, 1,823.37 and 731.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,321.34 : 1,823.37 = 731.84 : x
2. Step 2: Convert to fraction form
   1,321.34/1,823.37 = 731.84/x
3. Step 3: Cross multiply
   1,321.34x = 1,823.37 × 731.84
4. Step 4: Simplify right side
   1,321.34x = 1,334,415.10
5. Step 5: Solve for x
   x = 1,334,415.10/1,321.34
6. Step 6: Final answer
   x = 1,009.90