Finding the Fourth Proportional to 1,604.34, 2,214.05 and 896.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,604.34 : 2,214.05 = 896.15 : x
2. Step 2: Convert to fraction form
   1,604.34/2,214.05 = 896.15/x
3. Step 3: Cross multiply
   1,604.34x = 2,214.05 × 896.15
4. Step 4: Simplify right side
   1,604.34x = 1,984,114.55
5. Step 5: Solve for x
   x = 1,984,114.55/1,604.34
6. Step 6: Final answer
   x = 1,236.72