Finding the Fourth Proportional to 1,404.37, 1,937.98 and 814.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.37 : 1,937.98 = 814.86 : x
2. Step 2: Convert to fraction form
   1,404.37/1,937.98 = 814.86/x
3. Step 3: Cross multiply
   1,404.37x = 1,937.98 × 814.86
4. Step 4: Simplify right side
   1,404.37x = 1,579,178.82
5. Step 5: Solve for x
   x = 1,579,178.82/1,404.37
6. Step 6: Final answer
   x = 1,124.47