Finding the Fourth Proportional to 3,178.42, 4,385.82 and 1,762.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,178.42 : 4,385.82 = 1,762.10 : x
2. Step 2: Convert to fraction form
   3,178.42/4,385.82 = 1,762.10/x
3. Step 3: Cross multiply
   3,178.42x = 4,385.82 × 1,762.10
4. Step 4: Simplify right side
   3,178.42x = 7,728,229.82
5. Step 5: Solve for x
   x = 7,728,229.82/3,178.42
6. Step 6: Final answer
   x = 2,431.47