Finding the Fourth Proportional to 3,477.42, 5,216.00 and 1,396.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,477.42 : 5,216.00 = 1,396.80 : x
2. Step 2: Convert to fraction form
   3,477.42/5,216.00 = 1,396.80/x
3. Step 3: Cross multiply
   3,477.42x = 5,216.00 × 1,396.80
4. Step 4: Simplify right side
   3,477.42x = 7,285,701.82
5. Step 5: Solve for x
   x = 7,285,701.82/3,477.42
6. Step 6: Final answer
   x = 2,095.15