Finding the Fourth Proportional to 2,373.67, 3,274.81 and 1,428.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,373.67 : 3,274.81 = 1,428.73 : x
2. Step 2: Convert to fraction form
   2,373.67/3,274.81 = 1,428.73/x
3. Step 3: Cross multiply
   2,373.67x = 3,274.81 × 1,428.73
4. Step 4: Simplify right side
   2,373.67x = 4,678,819.29
5. Step 5: Solve for x
   x = 4,678,819.29/2,373.67
6. Step 6: Final answer
   x = 1,971.13