Finding the Fourth Proportional to 1,671.72, 2,307.12 and 973.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,671.72 : 2,307.12 = 973.32 : x
2. Step 2: Convert to fraction form
   1,671.72/2,307.12 = 973.32/x
3. Step 3: Cross multiply
   1,671.72x = 2,307.12 × 973.32
4. Step 4: Simplify right side
   1,671.72x = 2,245,566.04
5. Step 5: Solve for x
   x = 2,245,566.04/1,671.72
6. Step 6: Final answer
   x = 1,343.27