Finding the Fourth Proportional to 1,671.89, 2,307.21 and 973.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,671.89 : 2,307.21 = 973.27 : x
2. Step 2: Convert to fraction form
   1,671.89/2,307.21 = 973.27/x
3. Step 3: Cross multiply
   1,671.89x = 2,307.21 × 973.27
4. Step 4: Simplify right side
   1,671.89x = 2,245,527.27
5. Step 5: Solve for x
   x = 2,245,527.27/1,671.89
6. Step 6: Final answer
   x = 1,343.11