Finding the Fourth Proportional to 1,333.89, 1,840.05 and 809.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.89 : 1,840.05 = 809.96 : x
2. Step 2: Convert to fraction form
   1,333.89/1,840.05 = 809.96/x
3. Step 3: Cross multiply
   1,333.89x = 1,840.05 × 809.96
4. Step 4: Simplify right side
   1,333.89x = 1,490,357.70
5. Step 5: Solve for x
   x = 1,490,357.70/1,333.89
6. Step 6: Final answer
   x = 1,117.30