Finding the Fourth Proportional to 1,225.89, 1,840.84 and 804.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,225.89 : 1,840.84 = 804.42 : x
2. Step 2: Convert to fraction form
   1,225.89/1,840.84 = 804.42/x
3. Step 3: Cross multiply
   1,225.89x = 1,840.84 × 804.42
4. Step 4: Simplify right side
   1,225.89x = 1,480,806.50
5. Step 5: Solve for x
   x = 1,480,806.50/1,225.89
6. Step 6: Final answer
   x = 1,207.94