Finding the Fourth Proportional to 2,851.93, 3,933.89 and 1,731.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,851.93 : 3,933.89 = 1,731.78 : x
2. Step 2: Convert to fraction form
   2,851.93/3,933.89 = 1,731.78/x
3. Step 3: Cross multiply
   2,851.93x = 3,933.89 × 1,731.78
4. Step 4: Simplify right side
   2,851.93x = 6,812,632.02
5. Step 5: Solve for x
   x = 6,812,632.02/2,851.93
6. Step 6: Final answer
   x = 2,388.78