Finding the Fourth Proportional to 1,810.38, 2,711.82 and 930.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.38 : 2,711.82 = 930.23 : x
2. Step 2: Convert to fraction form
   1,810.38/2,711.82 = 930.23/x
3. Step 3: Cross multiply
   1,810.38x = 2,711.82 × 930.23
4. Step 4: Simplify right side
   1,810.38x = 2,522,616.32
5. Step 5: Solve for x
   x = 2,522,616.32/1,810.38
6. Step 6: Final answer
   x = 1,393.42