Finding the Fourth Proportional to 1,338.09, 1,847.39 and 1,059.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.09 : 1,847.39 = 1,059.45 : x
2. Step 2: Convert to fraction form
   1,338.09/1,847.39 = 1,059.45/x
3. Step 3: Cross multiply
   1,338.09x = 1,847.39 × 1,059.45
4. Step 4: Simplify right side
   1,338.09x = 1,957,217.34
5. Step 5: Solve for x
   x = 1,957,217.34/1,338.09
6. Step 6: Final answer
   x = 1,462.69