Finding the Fourth Proportional to 1,404.01, 1,937.43 and 814.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.01 : 1,937.43 = 814.45 : x
2. Step 2: Convert to fraction form
   1,404.01/1,937.43 = 814.45/x
3. Step 3: Cross multiply
   1,404.01x = 1,937.43 × 814.45
4. Step 4: Simplify right side
   1,404.01x = 1,577,939.86
5. Step 5: Solve for x
   x = 1,577,939.86/1,404.01
6. Step 6: Final answer
   x = 1,123.88