Finding the Fourth Proportional to 2,216.67, 3,060.55 and 1,377.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.67 : 3,060.55 = 1,377.71 : x
2. Step 2: Convert to fraction form
   2,216.67/3,060.55 = 1,377.71/x
3. Step 3: Cross multiply
   2,216.67x = 3,060.55 × 1,377.71
4. Step 4: Simplify right side
   2,216.67x = 4,216,550.34
5. Step 5: Solve for x
   x = 4,216,550.34/2,216.67
6. Step 6: Final answer
   x = 1,902.20