Finding the Fourth Proportional to 2,213.37, 3,321.56 and 914.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,213.37 : 3,321.56 = 914.83 : x
2. Step 2: Convert to fraction form
   2,213.37/3,321.56 = 914.83/x
3. Step 3: Cross multiply
   2,213.37x = 3,321.56 × 914.83
4. Step 4: Simplify right side
   2,213.37x = 3,038,662.73
5. Step 5: Solve for x
   x = 3,038,662.73/2,213.37
6. Step 6: Final answer
   x = 1,372.87