Finding the Fourth Proportional to 1,337.38, 1,845.72 and 813.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.38 : 1,845.72 = 813.71 : x
2. Step 2: Convert to fraction form
   1,337.38/1,845.72 = 813.71/x
3. Step 3: Cross multiply
   1,337.38x = 1,845.72 × 813.71
4. Step 4: Simplify right side
   1,337.38x = 1,501,885.44
5. Step 5: Solve for x
   x = 1,501,885.44/1,337.38
6. Step 6: Final answer
   x = 1,123.01