Finding the Fourth Proportional to 1,672.50, 2,308.06 and 973.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.50 : 2,308.06 = 973.92 : x
2. Step 2: Convert to fraction form
   1,672.50/2,308.06 = 973.92/x
3. Step 3: Cross multiply
   1,672.50x = 2,308.06 × 973.92
4. Step 4: Simplify right side
   1,672.50x = 2,247,865.80
5. Step 5: Solve for x
   x = 2,247,865.80/1,672.50
6. Step 6: Final answer
   x = 1,344.02