Finding the Fourth Proportional to 1,338.46, 1,847.59 and 896.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.46 : 1,847.59 = 896.20 : x
2. Step 2: Convert to fraction form
   1,338.46/1,847.59 = 896.20/x
3. Step 3: Cross multiply
   1,338.46x = 1,847.59 × 896.20
4. Step 4: Simplify right side
   1,338.46x = 1,655,810.16
5. Step 5: Solve for x
   x = 1,655,810.16/1,338.46
6. Step 6: Final answer
   x = 1,237.10