Finding the Fourth Proportional to 4,931.49, 7,398.72 and 2,851.02

Step by Step Solution

1. Step 1: Write the proportion equation
   4,931.49 : 7,398.72 = 2,851.02 : x
2. Step 2: Convert to fraction form
   4,931.49/7,398.72 = 2,851.02/x
3. Step 3: Cross multiply
   4,931.49x = 7,398.72 × 2,851.02
4. Step 4: Simplify right side
   4,931.49x = 21,093,898.69
5. Step 5: Solve for x
   x = 21,093,898.69/4,931.49
6. Step 6: Final answer
   x = 4,277.39