Finding the Fourth Proportional to 1,338.08, 1,846.24 and 814.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.08 : 1,846.24 = 814.12 : x
2. Step 2: Convert to fraction form
   1,338.08/1,846.24 = 814.12/x
3. Step 3: Cross multiply
   1,338.08x = 1,846.24 × 814.12
4. Step 4: Simplify right side
   1,338.08x = 1,503,060.91
5. Step 5: Solve for x
   x = 1,503,060.91/1,338.08
6. Step 6: Final answer
   x = 1,123.30