Finding the Fourth Proportional to 3,426.18, 5,138.73 and 1,477.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,426.18 : 5,138.73 = 1,477.86 : x
2. Step 2: Convert to fraction form
   3,426.18/5,138.73 = 1,477.86/x
3. Step 3: Cross multiply
   3,426.18x = 5,138.73 × 1,477.86
4. Step 4: Simplify right side
   3,426.18x = 7,594,323.52
5. Step 5: Solve for x
   x = 7,594,323.52/3,426.18
6. Step 6: Final answer
   x = 2,216.56