Finding the Fourth Proportional to 2,851.34, 3,935.82 and 1,671.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,851.34 : 3,935.82 = 1,671.98 : x
2. Step 2: Convert to fraction form
   2,851.34/3,935.82 = 1,671.98/x
3. Step 3: Cross multiply
   2,851.34x = 3,935.82 × 1,671.98
4. Step 4: Simplify right side
   2,851.34x = 6,580,612.32
5. Step 5: Solve for x
   x = 6,580,612.32/2,851.34
6. Step 6: Final answer
   x = 2,307.90