Finding the Fourth Proportional to 1,672.05, 2,308.03 and 973.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.05 : 2,308.03 = 973.42 : x
2. Step 2: Convert to fraction form
   1,672.05/2,308.03 = 973.42/x
3. Step 3: Cross multiply
   1,672.05x = 2,308.03 × 973.42
4. Step 4: Simplify right side
   1,672.05x = 2,246,682.56
5. Step 5: Solve for x
   x = 2,246,682.56/1,672.05
6. Step 6: Final answer
   x = 1,343.67