Finding the Fourth Proportional to 1,401.86, 1,934.47 and 804.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.86 : 1,934.47 = 804.35 : x
2. Step 2: Convert to fraction form
   1,401.86/1,934.47 = 804.35/x
3. Step 3: Cross multiply
   1,401.86x = 1,934.47 × 804.35
4. Step 4: Simplify right side
   1,401.86x = 1,555,996.79
5. Step 5: Solve for x
   x = 1,555,996.79/1,401.86
6. Step 6: Final answer
   x = 1,109.95