Finding the Fourth Proportional to 3,401.87, 5,101.79 and 1,210.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,401.87 : 5,101.79 = 1,210.10 : x
2. Step 2: Convert to fraction form
   3,401.87/5,101.79 = 1,210.10/x
3. Step 3: Cross multiply
   3,401.87x = 5,101.79 × 1,210.10
4. Step 4: Simplify right side
   3,401.87x = 6,173,644.52
5. Step 5: Solve for x
   x = 6,173,644.52/3,401.87
6. Step 6: Final answer
   x = 1,814.78