Finding the Fourth Proportional to 1,404.41, 1,938.74 and 814.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.41 : 1,938.74 = 814.84 : x
2. Step 2: Convert to fraction form
   1,404.41/1,938.74 = 814.84/x
3. Step 3: Cross multiply
   1,404.41x = 1,938.74 × 814.84
4. Step 4: Simplify right side
   1,404.41x = 1,579,753.98
5. Step 5: Solve for x
   x = 1,579,753.98/1,404.41
6. Step 6: Final answer
   x = 1,124.86