Finding the Fourth Proportional to 2,213.46, 3,319.52 and 914.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,213.46 : 3,319.52 = 914.63 : x
2. Step 2: Convert to fraction form
   2,213.46/3,319.52 = 914.63/x
3. Step 3: Cross multiply
   2,213.46x = 3,319.52 × 914.63
4. Step 4: Simplify right side
   2,213.46x = 3,036,111.41
5. Step 5: Solve for x
   x = 3,036,111.41/2,213.46
6. Step 6: Final answer
   x = 1,371.66